Question

Tolong di jawab pake cara kak
mksii

Answer 1

Atrans = [3 0]
              [2  5]

AX = B + Atrans
[3 2][a b] = [-3  -1] + [3 0]
[0 5][c d]    [-17 0]     [2 5]

[3a + 2c 3b + 2d] = [0    -1]
[5c                  5d]    [-15 5]

5d = 5
d = 1
5c = -15
c = -3

3b + 2d = -1
3b + 2 = -1
3b = -3
b = -1

3a + 2c = 0
3a + 2.-3 = 0
3a - 6 = 0
3a = 6
a = 2

determinan = a.d - b.c
= 2.1 - (-1)(-3)
= 2 - 3
= -1