Matematika tolong bantu jawab yg bnerrr​

aniyahquigleyulv – April 04, 2023

tolong bantu jawab yg bnerrr​

[tex]A = B^T[/tex]

[tex]\left[\begin{array}{ccc}3&a-b&b-c\\c+d&2b&10\\\end{array}\right] = \left[\begin{array}{ccc}3&-2&5\\4&6&10\\\end{array}\right][/tex]

Ingat konsep dari kesamaan matriks.

Cari b:

2b = 6

b = 6/2

b = 3

b - c = 5

Substitusi b = 3

3 - c = 5

-c = 5 - 3

-c = 2

c = -2

a - b = -2

Substitusi b = 3

a - 3 = -2

a = -2 + 3

a = 1

c + d = 4

Substitusi c = -2

-2 + d = 4

d = 4 + 2

d = 6

Maka sudah ketemu:

a = 1

b = 3

c = -2

d = 6

Maka, nilai dari a + b + c + d = 1 + 3 + (-2) + 6 = 8

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