- #1
mickellowery
- 69
- 0
Homework Statement
sin(tan-1(x))
Homework Equations
The Attempt at a Solution
y=tan-1(x)
tan(y)=x
sec2(y)= 1+tan2(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]?