Question

What are the components of the vector between the origin and the polar coordinate `(7, (5pi)/12)`?

Answer 1

see below

Explanation:

the polar coordinate of the position vector is `(r=7,theta=(5pi)/12)`
The vector may be represented as `(rcosthetahati+rsinthetahatj)`
=`(7*cos(5pi/12)hati+7*sin(5pi/12))`