find the area of the parallelogram that has the vectors as adjacent sides

Question

u = -2i + j + 5k
v = 4i - 3j - 3k

a. 11
b. squareroot 26
c. 86
d. 2 squareroot 86
e. 1

Answer 1

the area is |u×v| = |12i+14j+2k|