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

Find all points of intersection of the two graphs r=sin [tex] \theta [/tex] and r=cos 2 [tex] \theta [/tex]

3. The attempt at a solution

sin [tex] \theta [/tex] = cos 2 [tex] \theta [/tex]

I use the trigonometric identity cos 2x = (cosx)^2 - (sinx)^2 but it doesn't take me any further.

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# Intersections of two graphs (polar coordinates)

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