(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

a) I can get a quite easily:

theta = + and - pi/3

r = + and - 3a/2

b) Can someone guide me throught how to get this. I want to find the distance between A and B

that is

(3a/2,pi/3), (-3a/2,-pi/3)

Thanks :)

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# Polar co-ordinates help

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