
#1
Feb2312, 01:35 AM

P: 4

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) 



#2
Feb2312, 01:47 AM

P: 799





#3
Feb2312, 01:48 AM

P: 4

I can't use trig identy to solve it




#4
Feb2312, 01:50 AM

P: 4

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




#5
Feb2312, 03:03 PM

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#6
Feb2312, 03:22 PM

HW Helper
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#7
Feb2612, 05:22 PM

P: 4

could you please send me your working for this question??




#8
Feb2612, 05:30 PM

P: 29

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?




#9
Feb2612, 05:53 PM

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