Question

Dik = A = [5 -2], B=[4 k], C=[9 2]
[ 1 2] [4 -2] [-5 0]
jika A+Bt=C, maka nilai k adalah..... (soal matriks)

Answer 1

Bt= B transpose
[5 -2] + [4 4] = [9 2]
[1 2] [k -2] [-5 0]
1 + k = -5
k = -6

Answer 2