Finally i found a channel where it gives a 100% clarification to find whether a number is perfect cube or Not!!! No other YT channel or Vedic Maths Book has shown about 4 properties that you gave just Now!!! YOU ARE GENIUS🤩💯
Good to know- never knew these rules. Would have been good if you had ended with some examples that covered all the rules. Typically students get questions that ask them to find which among a given list of numbers is a perfect square or a cube. Had you given some examples, it could have made it faster to zero down on the right answer and also give viewers the confidence. You could have also dwelt on how to figure out why numbers like 72 are not perfect cubes despite the digital sum rule working- basically identify cube roots in such situations or discard non-cube numbers to move onto the next.
I would recommend watching this video again with a calm mind and with an English dictionary (if you don't know that) Because every trick taught in this video is authentic and even works on your example too.
25^3 = 15625 Last digit is 5. So Unit digit of cube root of 15625 is 5. Now consider 15 (eliminating last 3 digits i.e.625). The nearest perfect cube less than 15 is 8. Its cube root is 2. Hence cube root of 15625 is 25. here 2 is an even number. So its 2nd last digit is even. 15^3 = 3375. Here 1 is odd number and so odd number in perfect cube .
You say that if the last digit ends with '1' then the second last digit must be 'even'. But it not true in the case of 11x11x11=1331 where cube ends with 1 and the last second digit is 3 which is odd
Finally i found a channel where it gives a 100% clarification to find whether a number is perfect cube or Not!!! No other YT channel or Vedic Maths Book has shown about 4 properties that you gave just Now!!!
YOU ARE GENIUS🤩💯
You are the no 1 teacher in maths
Thanku sir for this calculation
❤❤❤❤❤❤❤❤
Good to know- never knew these rules.
Would have been good if you had ended with some examples that covered all the rules. Typically students get questions that ask them to find which among a given list of numbers is a perfect square or a cube.
Had you given some examples, it could have made it faster to zero down on the right answer and also give viewers the confidence.
You could have also dwelt on how to figure out why numbers like 72 are not perfect cubes despite the digital sum rule working- basically identify cube roots in such situations or discard non-cube numbers to move onto the next.
I'm amazed to see how gud u r in Maths. Big respect to u bro 👍❤❤❤❤
Thanks brother
Good
U r a genius teacher 😊
so Welcome to your own channel
❤
But 100is not perfect cube here digital sum is 1but 100, 10000 are some exceptions
Super...
Legends watching after 3 years
25x25x25=15625. You say if the last digit is 5, the second last digit is odd. But here even number.
I would recommend watching this video again with a calm mind and with an English dictionary (if you don't know that)
Because every trick taught in this video is authentic and even works on your example too.
25^3 = 15625
Last digit is 5.
So Unit digit of cube root of 15625 is 5.
Now consider 15 (eliminating last 3 digits i.e.625).
The nearest perfect cube less than 15 is 8. Its cube root is 2.
Hence cube root of 15625 is 25.
here 2 is an even number. So its 2nd last digit is even.
15^3 = 3375. Here 1 is odd number and so odd number in perfect cube .
😂
7+2+9 18 yarrr not 9
Digital sum nahi digit sum
You say that if the last digit ends with '1' then the second last digit must be 'even'. But it not true in the case of 11x11x11=1331 where cube ends with 1 and the last second digit is 3 which is odd
he told if last digit is 1 and second last digit is odd then Cube's 2nd last digit will be a odd number
He didn't give detail explanation
You should teach how to find a big number whether a perfect cube or not
Bkk sale
From cubic root to cubes is not useful to students