I have an exam tomorrow and am trying to do past exam questions.Panicking!

The question tells us G(x)=integral between -1 and (sinx)^2 of e^t.tant dt. F(x)=integral between-1 and x of e^t.tant dt.

Write G(x) in terms of F(x). Find G'(x).

I think I have G'(x) as 2sinxcosx(e^(sinx)^2).tan((sinx)^2).

However, I'm not so sure of how to express G(x) in terms of F(X).

Can anyone help?