bangbrokevo9267 bangbrokevo9267

18-02-2020
Mathematics

contestada

If A and B are 2x2 matrices, det(A)=-1,det(B)=3, then

det(AB)=

det(-2A)=

det(A^T)=

det(B^-1)=

det(B^4)=

Respuesta :

LammettHash LammettHash

18-02-2020

det(AB) = det(A) * det(B) = -3

det(-2A) = (-2)^2 * det(A) = -4

det(A^T) = det(A) = -1

det(B^-1) = 1/det(B) = 1/3

det(B^4) = det(B)^4 = 81

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