Question

If A=[4−246] and B=[231−2] find the matrix D such that 3A - 2B + 2D = 0​

Answer 1

Answer:

D = [225 371]

Step-by-step explanation:

given,

A=[4−246] and B=[231−2]

also,

3A - 2B + 2D = 0​

3[4 −246] - 2[231 −2] + 2D = 0 {from above}

[12 -738] - [462 -4] +2D = 0

[-450 -742] +2D= 0

2D= -[-450 -742]

D = [225 371]

hence D = [225 371]