Find v x w if v=-7i+2j+4k and w=2i-2j+8k

The value of v x and w is (24i) + (64j) - (10k)

Step-by-step explanation:

Finding the value of "v x w"

To solve this problem, take the cross product

[i j k]

[-7 2 4]

[2 - 2 8]

= i (16 + 8) + j (-56 - 8) + k (14 - 4)

Make note that when you set the matrix for j column, then the value must be negative, so we have (24i) + (64j) - (10k)

The value of v x and w is (24i) + (64j) - (10k)