Asked by Anonymous

find the magnitude and direction angle of the vector.
3i-4j and -3i-5j

Answers

Answered by oobleck
Givem u,v I can find
u+v, u-v, u•v, u×v
I don't know what u and v is.

If all you want is each vector, then
|3-4j| = √(3^2+4^2) = 5
The direction θ is such that
tanθ = y/x = -4/3 so it is in QIV

Do -3-5j the same way.
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