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

sin(tan^{-1}(x))

2. Relevant equations

3. The attempt at a solution

y=tan^{-1}(x)

tan(y)=x

sec^{2}(y)= 1+tan^{2}(y)

sec(y)=[tex]\sqrt{1+x^2}[/tex]

This is where I'm getting stuck. I know that I have to say that the sin(y)= whatever, but I'm not sure how to tie the sin sec and tan together. Is there a trig identity or should I make tan= [tex]\frac{sin}{cos}[/tex]?

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# Homework Help: Inverse trig functions with tan-1

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