[tex]1 - \frac{\cos^2 \theta}{1 + \sin^2 \theta} = \sin \theta[/tex](adsbygoogle = window.adsbygoogle || []).push({});

I can only get to [tex] \frac{2\sin^2 \theta}{1 + \sin^2 \theta}[/tex] and I don't know if that's correct.

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# Homework Help: Another Trig Identity

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