Question

dada ad matrizes B=[-1 2]e C=[2 -2]
[3- 5] [3 0]

calcule: a)det (b)
b)det( c)
c)det (b)det(c)
d)det(b-c)

Answer 1

Matriz B
-1  2
3  -5

Matriz C
2  -2
3   0

a) det B= (-1)*(-5)-(2*3)
det B= 5-6 = -1

b) det C=2*0-(3*(-2))
det C=6

c) det (B.C)=-1*6
det (BC)=-6

d)det (B-C)=-1-6
DET (B-C)=-7