- #1

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## Homework Statement

x=2acos(theta- pi/3)cos(theta)

y=2acos(theta- pi/3)sin(theta)

Write everything in terms of x and y

## Homework Equations

cos(a-b)=cos(a)cos(b)+sin(a)sin(b)

sina/cosa=tana

etc...

## The Attempt at a Solution

I've tried alot of rearranging, can't figure it out.