I need help with this one trig problem.

I can solve most trig problems but I can't seem to simplify this:
Let x be theta-
cos^2x(1+tan^2x)
I think I have the first step down, which is converting the tangent into sin^2/cos^2. But I'm stuck after that.

Question

I need help with this one trig problem.

I can solve most trig problems but I can't seem to simplify this:
Let x be theta-
cos^2x(1+tan^2x)
I think I have the first step down, which is converting the tangent into sin^2/cos^2. But I'm stuck after that.

imstuck · Answer

You are simplifying or proving an identity?  Which one?

anonymous · Answer

Simplifying

imstuck · Answer

1+tan^2 x is equal to sec^2 x.  Let me work that and I'll be right back.

anonymous · Answer

oh I didn't know that

anonymous · Answer

wait secant? i dont think i covered secant... is there another way?

imstuck · Answer

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