Question
the sides of a parallelogram are determined by the vectors m= (2,-3,5) and n= (-1,7,5). determine
a. the larger angle between the diagonals of this parallelogram.
b. the smaller angle between the sides
a. the larger angle between the diagonals of this parallelogram.
b. the smaller angle between the sides
Answers
oobleck
recall that u•v = |u| |v| cosθ