Question

Tolonggg bantu dongg nomor 11-20

Answer 1

No. 11
Determinan matriks singular = 0
(4)(3) - x(-6) = 0
12 + 6x = 0
6x = -12
x = -2

No.12
Perkalian matrik ambil yg memiliki variable x
(3)(3x) + (6)(4) = -12
9x + 24 = -12
9x = -12 - 24
9x = - 36
x = -4