Thread: determinant question 5

if =2

then
=-16

is it true?

Originally Posted by transgalactic

if =2

then
=-16

is it true?

I don't know, is it?

i dont know how to break the big determinant into smaller packages of the original determinant

Have you tried computing the determinants for both and comparing them? Although I'm not completely sure if this is the best way, but it may work.

Originally Posted by Drexel28

I don't know, is it?

Remember that determinant is a multilineal functions, so:

,

So....??

Tonio

Originally Posted by tonio

Remember that determinant is a multilineal functions, so:

,

So....??

Tonio

Why did you quote me? I know how to do this.

Originally Posted by Drexel28

Why did you quote me? I know how to do this.

I'm a selective reader: only got "I don't know" and thought it was the OP. Hopefully I won't confuse him/her.

Tonio

I'd do column reduction and then factor out the 2 and -4, so 2(2)(-4)=-16