Question

Let B = [-1 3 6 -3]. Find -4B.

a. [-4 12 24 -12]

b. [4 3 6 -3]

c. [-3 1 4 -5]

d. [4 -12 -24 12]

Answer 1

d. [4 -12 -24 12]

Explanation:

This question is on multiplication in matrix

Given matrix B, -4B means -4 × matrix B

B= [ -1 3 6 -3]

-4B = -4 [-1 3 6 -3]

-4B = [4 -12 -24 12]