Prove: sec4x-tan4x=1+2tan*2x

Prove:sec*4x-tan*4x=1+2tan*2x
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2. asked by Sarah Fuller
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prove: (tan x + sec x)^2 = 2sec^2 x + 2tan x sec x - 1
1. 3 answers
2. asked by Help!!!HElp!!!Help!!!
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If 2tanA+cot A=tan B, then prove that 2tan(B-A)=cot A
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2. asked by santosh
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Prove the identity:sec^4x - tan^4x = 1+2tan^2x
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2. asked by Shane
3. 2,474 views
prove: (tan x + sec x)^2 = 2sec^2 x + 2tan x sec x - 1
1. 1 answer
2. asked by Help!!!HElp!!!Help!!!
3. 502 views
If Sin2x=3sin2y then prove: 2tan(x-y)= tan(x+y)
1. 2 answers
2. asked by saroj
3. 959 views
Prove:(tan x+sec x)^2 = 2sec^2(x)+2tan(x)secx-1
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2. asked by Anonymous
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if sin2x=3sin2y,prove that: 2tan(x-y)=tan(x+y)
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2. asked by aayush
3. 727 views
prove that the equation 2sin x cos x +4cos^2 x =1 may be written in the form of tan^2 x -2tan x -3=0
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2. asked by Nus
3. 1,570 views
Genral solution of:2tan x + 3=0 Solve for x if: 2tan x +3 =0 and x E[-180;180]
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2. asked by Thule
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Prove: sec*4x-tan*4x=1+2tan*2x