Prove that (4tanx(1-tanx)square)/((1+tanx)square)square=sin4x

Prove that (4tanx(1-tanx)square)/((1+tanx)square)square=sin4x
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2. asked by Ivan h
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Verify the Identity:sec(x/2)=the square root of (2 tanx/(tanx sinx))
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2. asked by Tina
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For this question, they want me to use fundamental trig identities to simplify the expression. The problem is as follows;
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2. asked by CodyJinks
3. 768 views
Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in terms of sinx and cosx.I don't know what i'm supposed to
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2. asked by Marrion
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Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in terms of sinx and cosx.I don't know what i'm supposed to
1. 1 answer
2. asked by Marrion
3. 680 views
2tan^2x-tanx-1=00<x<2pi •MATH - Steve, Thursday, July 18, 2013 at 11:48am (2tanx+1)(tanx-1) = 0 tanx = -1/2 or 1 ... Recall in
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2. asked by ROBIN
3. 600 views
Perform the addition or subtraction.tanx - sec^2x/tanx tan^2(x)/tan(x) - sec^2x/tanx = tan^2x sec^2x / tanx then I use the
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2. asked by Hannah
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Derivative of y=sec(tanx)?I don't get how it is secxsecx*secxtanx*tanxtanx. Where does an extra tanx come from? Derivative of
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2. asked by Beth
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what is the derivative of x/tan(x) and find f'(pi/4)f'(x)=(tanx-x*sec(x)^2)/(tanx)^2 That's the quotient rule for derivatives or
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Did I do this problem right?Find the first and second derative-simplify your answer. y=xtanx y'= (x)(sec^2 x)+(tanx)(1) y'=
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2. asked by Janet
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