det(A)=4

therefore

det(a^3)=?

my ans is =64

plse check my ans thks....

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- Dec 23rd 2008, 06:43 AMmathseekdeterminant
det(A)=4

therefore

det(a^3)=?

my ans is =64

plse check my ans thks.... - Dec 23rd 2008, 06:54 AMM_O'Loughlin
- Dec 23rd 2008, 06:55 AMHallsofIvy
deg(AB= det(A)det(B) so det(A^3)= (det(A))^3. Yes, that is correct.