proving using calculus without trig identity
Please I really need help with this hw question
Prove without trig identity that f`(x)=0 for F(x)=Asin^2(Bx+C)+Acos^2(Bx+C) 
Re: proving using calculus without trig identity
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Re: proving using calculus without trig identity
I can't use trig identy to solve it

Re: proving using calculus without trig identity
I mean I'm not allowed to

Re: proving using calculus without trig identity
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Re: proving using calculus without trig identity
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Re: proving using calculus without trig identity
could you please send me your working for this question??

Re: proving using calculus without trig identity
It's really simple  just use chain rule to take the d/dx of the whole expression. No trig or any other kinds of tricks necessary. Are you familiar with the use of chain rule?

Re: proving using calculus without trig identity
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