Question

can we use elemenatry row and column operations together in a single question while simplifying determinant?

Answer 1

@FoolForMath , @dpaInc , @ujjwal ,@

Answer 2

@AccessDenied

Answer 3

what do you mean in a single question?

Answer 4

i mean can we do it together for simplifying the same matrix?

Answer 5

srry detrminant

Answer 6

yes however watch out when you switch rows as you change the det(A) =-

Answer 7

bt that was nt possible in finding matrix inverse using elementary transformations .y is it possible here?

Answer 8

really for a determinant you should get one row to be with 1 and all zeroes. no need to go any further than that as it'd be a waste of time

Answer 9

so u mean if i am asked to simplify a determinant i should first think of making a row(or column) 1 0 0 ?

Answer 10

is that the best way?

Answer 11

@apoorvk

Answer 12

any other tips?

Answer 13

yes

Answer 14

because than all you have to worry about is 1 part of the determinatn because the others will be 0

Answer 15

give me some good tips for simplification of matrix i really need them

Answer 16

pls some more?

Answer 17

can you show me an example to demonstrate what exactly you are saying.. Usually you can't use row and column operations together.. Sometimes, that doesn't alter your result.. but such cases are just co-incidence..

Don't use row and columns operations together..

Answer 18

1|matrix|-|0|matrix|+0|matrix|=1|matrix|

Answer 19

????@ujjwal

Answer 20

i'm not 100% sure but i'mpretty sure you can use both but it's not recommended as what happens is you forget to change the determinant accordingly causing the answer to be wrong

Answer 21

@apoorvk pls clarify this

Answer 22

@Taufique

Answer 23

@Mani_Jha

Answer 24

How do you use row and column operation at the same time for this matrix?