sir, one more shortcut is there split A=B+I where B=4×4 contains all 1 & I=4×4 unity matrix then eigen value of B=4,0,0,0 & |A|=|B+I|=|B|+1=4+1=5 where |B|=product of eigen values
Not at all applicable to all questions only selectives If diagonal elements are 1 then answer can't be defined according to this that's why 2 has been used..
Shrenik Jain - Study Simplified (App):
play.google.com/store/apps/details?id=co.kevin.nxpgd
This trick is limited to this type of questions only
Right
Lol look at these bots!
One more way to solve this special type of matrix is (a+3b)(a-b)^3 where a=2 and b=1.
Actual video starts from 2:56
tq
(a+3b)(a-b)^3 can also be used to find the determinant of the above matrix where a=2 and b=1 so we get det. =5
Manjeet Godara har bar 3 hi hoga formula me??
@@onelot9591 bilkul i can give you the proof as well if you want..
@@onelot9591 yes this trik also work thanks 😊
Same trick maine bhi use ki 😁😁😁sir ne batae thi
Why here a=2
Sir please provide a short method to find inverse of 4×4matrix☺☺
all your videos are so much help full .live lone sir (more than 100years by earning lot of wealth)👏👏👏
If a matrix is in 3×4 or 4×3 order. Can we calculate ????
Determinant exists for square matrices only ......n×n
@@akkyanagnaneswari5617 what about rank for 3x4 and 4× 3 matrices, can we calculate?
@@mathe_ma yes we can calculate rank for 3×4 or 4×3 matrices also.
sir, one more shortcut is there
split A=B+I where B=4×4 contains all 1 & I=4×4 unity matrix
then eigen value of B=4,0,0,0 &
|A|=|B+I|=|B|+1=4+1=5
where |B|=product of eigen values
Sum of row one is actual trick to get answer thanku... Yeah meri research h or check krro
Solve in 2 seconds if you know some obscure formula that is usable only on this case. Great.
Ohho thnku
Sir if principle diagonal has different elements then how to solve please reply sir
marepalli sushmitha Reddy reduce the given matrix in Upper triangular form then |A|=product of principal diagonal element's
Awesome technique Bro😊😊😊
Love from Bangladesh🇧🇩🇧🇩🇧🇩
this trick can only be used when diagnoals are of equal ,,....whe diagonals becomes different we need to apply different approach
Thank you
Awesome tricks and it's reprentation!
4:45 This is the final result of question, when we prove such determinants. You may call it as Trick!!
Bro ur doing for diagonal elements being same what if the diagonal elements are different
If , there is 0 , at the place of 1 , then ???
0 only na det
This is so much helpful for me 🙏
Sir if we change the value of 1 in steet of other number than how to find the value
Is there any trick to solve all 4×4 matrix
Awesome bhaiya
If every rows elements sum are same .. Then thats your determinant value
Thanks
Method 2me substitute kaise kre?? A=?
Any trick for non special matrices??.....
Answer=5. Thank you sir
Super trick 👍👍
If the diagonal element are -1, -1, -1, -1 then
According to above formula it's -16
@@anshu_aruexactly
answer of 1st question is 5
.
6
8
8
aur ydi special na hua tb ke liye
Tab chhodh dena inke issab se
Mai bhi alag matrix ke liye aaya tha
Inhone ek particular matrix lekar kar diya 😐😐😐
Dusra chapter ka bhi short trick bataye
Option B -5
Agar matrix special case ka na hota to kaise solve krte???
Plz explain kijiye....
@R.P. CHAUHAN jee pyqs dekho usme sawal aaye hue h😊
Best book for aptitude
Rs agrawal
Any 4*4 matrix???
Nice👍
This is the same problem I was solving and I landed here
ruclips.net/video/tUhLoCXtu34/видео.html
This trick only valid for this type question.
Not at all applicable to all questions only selectives
If diagonal elements are 1 then answer can't be defined according to this that's why 2 has been used..
Just awesome sir
What if a, b, c, d are not equal in this 4x4 matrix
Still the formula is same
Shrenik Jain okay thank you..
Answer is 5 of second method
B :- 5
This trick only valid for this type of questions what about other types like distinct values.
Can't be applied!!
But yai tho sirf isi pai hi work krega
Thank you sir
5
Answer is 5
b. s grewal se research kie ho?
Thanks sir
But it can't work everywhere
This trick is not applicable for all matrices we can use only for this type of matrix.
Not appplicable to all matrices
bhai saab ye trick nhi h ye formula hai. but mhi achee se smjhaya but iske alwa ye khi use nhi hogi ...
lol maggie bhi 2 minute me nhi banti to ye problems kya 2 second me solve ho jayenge
Sir, Answer is B) 5
5 is ans
General trick ka kuch matlab... iska kya kroge😑
Option b
Awesome
5 answer
ans b
Yes
yes ans os b
B
(5)
This is not valid for other elements
E
koi ye samjhayega plz dobara
*Abc*
This trick is not useful for all matrix 4*4 ,
It's not a good trick it is limited it is not useful for general question it is useless
Sr if diagnols are all 0 of 5 by 5 matrix.what will be it's trick?
5
Bas yahi question ayega Kya paper me
Answer is 5
5
Ans is 5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
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5