Cube root of 9 digit Number in 20 seconds
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- Опубликовано: 11 окт 2024
- In this video i will tell you how to find the cube root of a 7 to 9 digit number. This is a very effective way of finding cube root of such high numbers.
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Nonsense you didn't specify in the vid title that the number must be the cube of an integer
As such, the method has no value at all
If we find the cuberoot of 200201625 by Swami Ramkrishna tirth method, we get three answers 525,565 and 585. The digital sum(Bijank) of all these answers is 9 which matches the Bijank of 200201625. Please clarify.
Answer is 585
and to correct you, the digital sum of 565^3 is not 9
I finally understand that middle digit routine now thanks very much :D
Amazing thank you man
Thanks a lot sir 😀
Good attempt but itana karane Tak exam khatm ho jayegi humko simplification ke questions 36 sec ke andar solve karne padate Hai but is ek term ko nikalane me hi time jayega....
it is vry lenthy explanation damn! i want solution fast
Practice it you will get result in seconds
pka diya hai
Sir please solve 269,586,136 &162,771,336
Answer nahi aa raha h
the answer is 646 for the first one and the second answer is 546
But the concept of digital sum doesn't hold true for all cases. eg 107171875
It does the answer is 475
Excellent
How did you do the second part
I didn't got it
please tell these cube root value of 1520875, 1953125, 3048625
those numbers ended with 5 , whenever i used the digital sum process also i did get more number of possibilities for finding 2 nd digit ..
what i can do ? for solving that ..
if it is 9 digit cube roots value ok for just assuming .
but in 12 digit cube there are so many possibilities for finding it.......
please link any video for exact properly finding cube roots for all .commonly .......
How about simply teaching yourself to find the cuberoot of ANY number??? You think??
1520875 -------> 115
1953125 -------> 125
3048625 -------> 145
Thus these are the answers to your questions
THANK YOU
BTW My advice is you better learn cubes upto 22 to master cube root upto 10 digit perfect number
nice ..
trick for finding..cube roots
when we have two possibilities for finding 2nd digit .. we are using digit sum. but some cases also digital sum value satisfies both two number ..
on that case what we have to do?
Why is it a "nice trick"? It is useless in the real world, because it requires that the number you are finding the cube root of be a perfect cube, and that you know it is a perfect cube. Here is a real situation: You are doing a calc and you find you need to find the cube root of 34567.98 to seven digits. Notice that this "trick" could not be used to help you in any way. It is useless, except as a very childish party trick.
@@37rainman this is made for competitions and all that, not for real world situations. Obviously then you'd be using a calculator or it's just your math textbook trying to torture you smh.
@@Kino-Imsureq my, that would be some childishly simpleminded "competition". How about having a competition where you actually do need to find the cube root of some random number to 8 digits using pen/paper only?
@@37rainman depends on the time limit given, if it's 1 minute then would do. 15 seconds, too little and you can presume it's a perfect cube. Otherwise, badly planned competition.
@@Kino-Imsureq so you think I cannot find the cube root of any random number to a large accuracy Employing pen and paper only. . Hmmmmm....... I assure you that I can find the cube root of any number to the 7th digit in less than ten minutes on a 4 by 6 inch piece of of paper, no erasing, no calculator assistance THAT would be a competition. There is nothing difficult or challenging about telling the cube root of a 2, 3, 5, or 6 digitIt number if you are told beforehand that it is a perfect cube. And if it is not a cube it is perfectly useless as an assist to finding the cube root. You do realize that people have been finding cube roots fore centuries, I hope...... People generally have competitions about things that are useful, correct?
200201625 ka apne short tricks se batana sir ji. ...
Power of Indian Vedic Maths😍
Pls tell how to find cube root of 201230056, because here third part is 056 and we can't subtract cube of 6 from 056.
Vedic Maths by Jyoti Tewari So the cube of 6 is 216 and in this case u just subtract the last two digits from 56 (56-16=40) because u just need the middle number which is 4. I hope this helps if there is anything u dont understand reply so i can explain :)
I also had the same problem, Thanks 👍
the answer is 586
Pliz use different colours and arrows to make simpler coz your pronunciation is hard to understand. But thanks for the effort.
Sorry, the number is not just any random nine digit number. It is an EXTREMELY RARE nine digit number, of which there are only 1000 in 1,000,000,000. 1 in a million. Whats more, he knew BEFOREHAND that it was one of these rare numbers.
As such there is absolutely no utility in this talent. None. It cannot help in any way to find the cube root of a number which is not one of those rare numbers.
Lol, you apparently do not realize that you can teach yourself to find the cube root of ANY number to 8 digit accuracy in less than 10 minutes.
other sums i solve with ur method it is very good but i found one problem while solving 270840023 this sum pls guide and solve
the answer is 647
Good bt very lengthy.In exam we would not get too much time to marvel at D's formulae so it's too time consuming way.....
Your's concept for 2nd example i.e digital sum method is not working in the case of cube root of 483736625 which is the perfect cube of 785. After using your concept i got four option 725, 745, 765,785. In these four options digital sum of cube of both 725 and 785 are same and equal to digital sum of the question.What is the another way after this to find exact answer.
+Rahul Kumar this situation will only arise with number ending in 5. In such situation you can just find cube of no. Succeeding the first digit of answer i.e. 8 in this case, then check whether first three digit of question is closer to cube of 8 or to cube of 7. If closer to 7 smaller no. Will be the answer else bigger no. Now cube of 8 is 512 and first three digit 483 is closer to 512 then cube of 7. So answer for middle digit is 8 and not 2.
Revealed A to Z Sorry sir i did not understand what you are trying to say.means we have to select a number from 2 and 8. Then why you have taken 7 and 8 .7 is also present in 725.
+Rahul Kumar no you are left with two choices 725 or 785. Now find cube of first no. Of your answer and no. Succeeding it. The first number of your answer is 7 and no. Succeeding it is 8. Find the cubes of 7 and 8. Then check whether the first three digits of question is closer to cube of 7 or 8. If it is closer to 7 cube then middle digit will be 2 otherwise 8
Revealed A to Z Are you trying to say that if cube of first digit of answer is closer to first 3 digit of question then smaller number from the options (i.e 725 from 725&785) will be the answer .
If you have a whatsapp number then share that number with me.I will send you screenshot of another problem in which I have a doubt.Please believe on me I will not disturb you by calling on that number.
+Rahul Kumar Yes you got it
Sir what is the cube root of 178453539?
178453539
563
its a non perfect cube
Great method
thank u so mch fr ds video.😊
Can you please help me what does mean 3T² - 4
3*1²*s - 4
3s - 4
Can you please explain it to me.
btw thanks for your videos
+Hi hi this is a formula
3 X sqr of third digit X Second digit = 4
its 3t²s=4
i mean the last digit wil be 4
Sir how can we find the cube root of 184220009
the answer is 569
When last digit is 9 then this is not working!!
Ex-cube(459)=98809389
Im having prblm in finding the 2nd digit!!
Plz help
459³≠ 98809389
Bruh!!!!! cube of 459 = 96702579
first learn to ask question properly!!!!!
@@madhavharish2575 "bru" there is zero value in being able to find the CR of a number you obtained by cubing the answer 1 minute previously
OBVIOUSLY!!!!!!!
😂😂😂😂😂😂😂
Sir For SOLVING the second digit what is T???
+Muthu Sathish third digit
Muthu Sathish third
cube √551368= 82
cube √ 274625 = 65
please question sagir ahmat books ka
Many2thanks
According to ur formula any cube ending with 75 results in a cube root with second digit as 5...but it's not true..so ur formula is not foolproof..I am sorry to say this..but this formula works for many other numbers
sir I have doubt in 142199321 cube but I got wrong answer as 541 cube
its a non perfect cube
Sir can you tell me how to do cube root of 789.....I applied your method but I have not found the answer....
Do you mean 789^3, or the cube root of 789? 789 cubed is 491169069 while the cube root of 789 is not a perfect cube.
"+AJL: But he asked a real question. "What is the cube root of 789?". You should realize that if you actually apply yourself you can find the cuberoot of ANY number to 8 digit accuracy in less than 10 minutes. With pen and paper only.
BTW, I am truly curious. What is the utility in being able to find the cube root of a number you obtained by cubing your answer a minute prior. Lol. (-; The answer is: "Exactly none
@@ronalddump4061 if that no. is already a perfect cube.... So you need to have that info ... By way of given or by way of deduction.... I liked his explanation... 👍👍👍
@@faizs9676but as he correctly stated, this trick cannot be used for anything real in maths.
When we are doing some calculation, we never are magically dealing with a perfect cube. And even in the astronomically tiny chance that we are, we wouldn't know we were
As such, there is no value in the trick except as a childish party trick
It cannot even help to approximate the answer
@@faizs9676 Yuh, but just as he said, its a useless talent
What is the cube root of 7653219
Plese explain
Its a non perfect cube as the digital sum is 6
Amazing man helped em
cn u xplain this method for cube of 106
Er you mean 106^3 or the cube root of 106 because for the first one just multiply and for the cube root uhm you just have to know I guess since it’s the base of many bigger numbers
Cube root of 200201625
After doing whole method i came on two no. 525,585 and both are meeting all conditions... How to solve this?
Soon i'll make video explaining how to find 3rd root of any number. Or nth root of any number
@@nikoladjuric9904 Did you do it in these 2 years? The funny thing is, i find many vids teaching the "long division method for cube roots", but every one of them figures it out to about the 3rd digit, and then surrenders, pointing out that "the method becomes prohibitively , long, cumbersome, and impractical"
It is not those things -- they just never took the time to figure out how to make it practical
I can find the root of any number to the 7th digit in 10 minutes entirely on a card of 4 x 6 inches. Or to 10 digits in less than 20 min, on 2/3rds of a standard sheet. No erasing, no tiny writing, and no calculator assistance.
Again, it would be interesting to know. (You should have figured it out by now) I have never met anyone on utube who has figured it out. Not one vid.
In my process, i never need to multiply any number by any number other than 2, 3, 4, 6, 8, 10, 12, 14, 16, or 18. I never square any number larger than 9. (Besides that, it is only a whole bunch of addition subtraction, and a bit of mental division). And, for example, for the 7 digit problem, there is never a number more that 8 digits long appearing in the bottom part of the long division configuration, or on the worksheet either. These are MAJOR hints as to what i do. What is it that i do?
Yes,it gets a little bit difficult to calculate more digits.
@@nikoladjuric9904 You did not address my comments. Did you make your vid? Did you in these 2 years figure out a way to evolve roots in a practical amount of time and space?
Again, considering that you are interested, you should have figured it out by now
approximation me kaise krenge
fastness ledhu
Avunu
Good
Tq for this vedio
Find cube root of 28372625 so that doubt clear.
its so simple ra.... the answer is 305
good video
Awsome man. Good work amazing.
harshal dave u
At the outset you say we'll find the cube root in 20 seconds. Two seconds later it becomes fractions of seconds. And then divide into pairs of 3. For Go'd sake a pair is TWO. It should be groups of three. And a billion has 10 digits not nine!
Wow, really interesting exiting stuff there dude........ Anything else??
nice
Please share the solution of cube of 84604519
439 is the answer
What if the last digit is not a perfect cube root digit? ?
Vandana Sharma if you check the one's place of cube of 1-9 there will be no number left out from 1-9👍
I feel bit tough to understand ur explanation
How you find 3 or 8
In what language is this ? :)
obj haha
understood . some commenting problem
Your methods are right but the way you explain is pathetic.. you need to slow down a bit.
107850176 how to find the cube root? Your method doesn't work here as we have negative number coming.....
+Bholanath Patra first digit of answer is 4. Last digit 6. Cube of 6= 216. Subtract it from 107850176-216= 107849960. Compute 3 T sqr S = 6. S= 7 Final answer 476
can you please give me the answer of this num
816213164
+sindoora kalyana this is not a perfect cube
@@revealedatoz2074 S/he did not ask you whether 816213164was a perfect cube, s/he asked you what the cube root of it is.
Btw, i can evolve the root of that number to 8 digits in less than 10 minutes. Can you? Pen and paper only. I can do it on a card of 4 x 6 inches.
That is something a little more challenging and substantial. Than pointing out that the perfect cube 24839 has very obviously got to be 29. Right?
tnq
*8:06** - "392" is closer to 343 than to 512... so 3!!*
But it's greater than 343
Brilliant. Take the number 124 999 999. What has to be the first digit in the cuberoot? Its got to be 4, correct? Doesnt matter that 124 999 999 is "astronomically" close to 125
@@ronalddump4061 Dumb ass its a non perfect cube as digital sum is 7
Ok then can u solve the cube root of 187247519
This is not a perfect cube
@@revealedatoz2074 That is no excuse.....
Ilikeitmostsir
Cube root of 21,27,76,173
answer is 597
Joss........
Best part starts at 6:13
There is no scene of 'billion' in a nine-digit number...
I apologise for that. That was mistake on my part
@@revealedatoz2074 that was sober .... 👍👍👍👍👍 ..... I liked your explanation
Find cube root of 491169069 because by this method we cannot find it
answer is 789
l like your vedio very much
Thanks
Lol, you guys are funny.
"How to find the cube root of 129 cubed"!
How?
You dont need to, the answer is right there, it is 129!
Hilarious!
you prolly dont care but does any of you know a trick to get back into an instagram account??
I stupidly lost the account password. I would appreciate any help you can give me
@Zaire King instablaster ;)
@Bentlee Deacon i really appreciate your reply. I got to the site on google and im waiting for the hacking stuff now.
Seems to take a while so I will get back to you later when my account password hopefully is recovered.
@Bentlee Deacon It did the trick and I actually got access to my account again. I'm so happy:D
Thanks so much you really help me out !
@Zaire King Happy to help xD
Watch a video on how to find sq root and cube root here-- ruclips.net/video/AFozNZxaPaM/видео.html
Last process is not applicable to all numbers
Far simpler to just use a calculator ..
wow
Thanx
यह क्यूब रूट निकालने का तरीका आपका है या किसी से लिए हैं आपने,
मान लीजिए कि कोई संख्या का क्यूब 955,671,625 है
तो क्या आप जो ट्रिक बताए हैं उस ट्रिक से इसका क्यूब रूट निकल सकता है ?
अगर हां तो इस संख्या का क्यूब रूट का प्रोसेसिंग जो है वह वीडियो बना कर उसका लिंक या हो सके तो वीडियो भेज दीजिए.
मेरा Whatsapp नंबर 7320926956 है .
Email id :- sunilkumardeevakarmt@gmail.com
अगर आपको लगता है कि यह ट्रिक काबिले तारीफ है तो आप खुद डिसाइड कीजिए
इन संख्याओं [ (a) 281011375 , (b) 232608375 ,] का घनमूल ट्रिक के माध्यम से बनाइए और सोचिए क्या यह ट्रिक सूटेबल है या इनमें एडवांस दिमाग का यूज होगा
या फिर हम यह मान ले कि कुछ संख्या का रूट क्यूब ट्रिक के माध्यम से अपवाद है ?
When no. Ends in 5 there is a problem as we can have multiple answers but the same can be found using digital sum method
Sunil Kumar Deevakar , Very easy method end 5 number, first 955 671 625 direct F =9,L=5, 945/985 answer 985, second 281 011 375 and 232 608 375 cube root 6M5 =615/655, 281 608 375 =655 cube, 232 608 375 =615 cube, when last number 5 in cube last number 125/375/625/875 help in middle number of cube root number
234775 tell the perfect cube root sir
Bandaru Ratnakara Rao not perfect cube
Sorry sir num mistaked the num is 234375. How to make a perfect cube
Not perfect cube again
Find the least num by which 234375 be divided to make it a perfect cube
That is the point, +Revealed, teach a method to find the cube root of 234775 to perhaps 6 figure accuracy! You can do that in just as much time as this vid took.
There is no value in being able to find the cube root of a perfect cube. Notice that the "trick" will not help one in the LEAST to find the cube root of 234775.
Focus now ...........
Pls solve cube root for 234567892
+kushi RAO this is not a perfect cube
Revealed A to Z so this method s applicable oly fr perfect cube??
+kushi RAO Yes. But I will upload a video for non perfect cubes in few days.
Revealed A to Z sure thank u sir..
Revealed A to Z
Bdw hw to find wthr it s perfect square or not fr larger number (like nine digit num)
Pls do mention tat in ua nxt vedio...
very bad way of solving this as this requires us to remember a lot of steps which is very time consuming and irritating.
It also requires that the number you are finding the cube root of be a perfect cube, and that you know it is a perfect cube. I should not need to point out that in your entire calculating life you will never come upon such a situation.
Sir,I think in not well in fundamental mathematics because your video is not in a correct way of teaching ok please learner basics of mathematics then after teach others, thanking you sir:-CHVSN as a INDIAN mathematician but till I am a learner of fundamental mathematics.
As ESL, this is not good instruction. You need to be clearer with each step doing the middle term. You're all over the place with that formula, flying thru without any clarity or explanation. Everything is EZ to follow until you get to the middle term 223.
I will take care of that in next videos
Thank you so much. I don't follow this 'Modulo' thing for the middle term of a root for 9-digit numbers. I DO get the counting sequence but I don't follow its application here, since I'm not yet getting a reliably consistent answer. (Sorry about the ESL crack).
234,885,113 proves your method wrong mister
The method solves the above question. U might be doing something wrong.
@@revealedatoz2074 i had to dig a little deeper and i found that the cube of third number is subtracted from the whole number while you have been subtracting it from last three digits ....that was a confusion you need to clarify in the video
Yes you are correct. But remember when you found something on your efforts that helps more.
617 is the answer mister
That's 581
The method is useless. In doing calculations in your math life, you are never going to magically encounter a perfect cube, that you KNOW is a perfect cube. Totally worthless, and a waste of time.
Simply learn how to find the cue root of ANY number to any accuracy desired.
Not good example
you're mad that automatically 8
How to apply formula 3TTs when it is equal to Zero ?
There are 7^3 dislikes. I guess 7 isn't so lucky after all...
This is not applicable for 5451667
Method not applicable for imperfect cubes
it is non perfect cube ra.... IDIOT!!! as the digital sum is 7
Telugu lo sir plz
you lost me at finding S. got confused.
Actually he lost me as to what is the use of being able to tell the cube root of a number you or someone else got by cubing the answer 1 minute prior! (-; lol....... Hilarious .....
Are you a teacher or a rapper
What made you think so
Explanation is not good.
There is a mistake watch clearly then u wil findout what's the problem
What is the problem
1:12
?????
explanation is not so good
Hindi mai bolo
Solved please 16777216
The answer is 256
i dnt knw y ...wen ppl r not comfrtable wid eng. they still try to speak...u cn also speak hindi n eng. in combined form as we speak nmly
upasna gupta
Exactly...first apply this logic on ur self....
amey vardhave best reply😂😂😂😂😂
I think so it will be big work If you type full words...
haan thoda bol kar batao...... ;-p @upasna gupta
atleast he is trying dont compare with other
Bhai tera tarika bhale shi ho pr tu samjha nhi pa rha h...
plz solve 2000376 cube root via this method?
Vivek Verma bhai nhi hoga inse. kya samjhaya inhone ye khud inko nhi pata. dislike.
sry for late reply. But the answer is make pair of 2 000 376. Now first number of answer will be 1 as it is the only number whose cube is shorter than 2. Last digit is 6 as only cube of 6 gives last digit as 6. Now find second digit. first step cube last digit i.e. 6 cube = 216. subtract it from last pair of original number i.e. 376 - 216 = 160. Ignore last digit of 160 and compute second digit of 160 i.e. 6 with 3 t2s= 6 you will get the answer.
the answer is 126
This method is not working for 819992201
its a non perfect cube as the digital sum is 5
For a perfect cube, you need to get the digital sum as = (0,1,8) -----> either 0, 1 or 8
Asaluu ardhamkaledhuu,so baddd
Very Confusing explanation and takes a lot of time
+Devender Kumar just try it for some time. U will lyk this method
Confusing or not, the method is useless for anything real. It cannot help in any way to find the cuberoot of numbers which you will encounter in your maths life.
its taken too much of time
Not good
you'll find many people to criticize you when you are doing well.
But then there are also people like you to motivate
Actually you would "motivate" better if you would simply teach the method to find the cube root of ANY number to ANY accuracy desired! YOU THINK???? You should realize that I can, using a REAL method, find the cube root of ANY number to 7 digit accuracy in less than the 9 minutes you took here to find the 3 digit cube root of a number you already knew to be a cube. (Btw, THAT talent is a useless talent, right?)