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PSEB-TRIGONOMETRIC FUNCTIONS-EXERCISE
- Prove the following: (sin5x + sin 3x)/(cos5x + cos3x)=tan4x
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- Prove the following: (sin x-sin y)/(cosx + cos y)=tanfrac(x-y)(2)
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- Prove the following: (sinx + sin3x)/(cosx + cos3x)=tan 2x
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- Prove the following: (sin x -sin 3x)/(sin^2 x -cos^2 x)= 2sinx
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- Prove the following: (cos4x + cos3x + cos2x)/(sin4x + sin 3x + sin 2x)...
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- Prove the following: cot x cot 2x -cot 2x cot 3x -cot 3x cot x = 1
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- Prove the following: tan 4x =(4tan x (1-tan^2x))/(1-6 tan^2x + tan^4x)
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- Prove the following: cos 4x = 1 - 8sin^2 x cos^2 x
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- Prove the following: cos 6x = 32 cos^6 x -48cos^4 x + 18 cos^2 x - 1
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- Find the principal and general solutions of the following equation:- t...
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- Find the principal and general solutions of the following equation:- s...
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- Find the principal and general solutions of the following equation:- c...
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- Find the principal and general solutions of the following equation:- c...
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- Find the general solution of the following equations: cos 4 x = cos 2x
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- Find the general solution of the following equations: cos 3x + cosx- c...
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- Find the general solution of the following equations: sin 2x + cosx = ...
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- Find the general solution of the following equations: sec^2 2x = 1- ta...
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- Find the general solution of the following equations: sin x + sin 3x +...
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- Prove that: 2cos frac (pi)(13)cos frac (9pi)(13)+cos frac (3pi)(13)+co...
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- Prove that: (sin 3x + sin x) sin x + (cos 3x -cos x) cos x = 0
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