Asked by anna

Find the angle between the vectors u and v if
u = (-1,4)
v = (3,-4)

a. 155.93
b. 158.58
c. 158.13
d. 155.24
e. 157.17

9 years ago

Answered by Steve

just plug in your numbers:

cosθ =
u•v
-----------------------
|u| |u|

9 years ago

Answered by anna

I've tried this and got - 0.9216353751380653

can you help me any further please?

9 years ago

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