Question

Jika M N = matriks identitas dan

N = 5 -2

3 -1

maka matriks M adalah

Answer 1

Penyelesaian difoto...semoga membantu ☆

Answer 2

Jika MN = I
maka M = N⁻¹

N⁻¹ = 1/(det N) (adj N)

N⁻¹ = 1/(-5+6) [-1...2||-3...5]
N⁺¹ =  [-1...2||-3...5]

M = N⁻¹
M = [ -1...2|| -3..5]