- #1
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Homework Statement
Find [tex]\int{tan^2xsec^2xdx}[/tex]
Homework Equations
[tex]tan^2x=sec^2x-1[/tex] (1)
The Attempt at a Solution
Using (1): [tex]\int{(sec^4x-sec^2x)dx}[/tex]
Now, [tex]\int{sec^4xdx}-\int{sec^2xdx}=\int{sec^4xdx}-tanx+c[/tex]
I can't figure out how to solve [tex]\int{sec^4xdx}[/tex] though.