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Prove that tan4x=(4tanx(1-tan^2x))/(1-6t...

Prove that `tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)`

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V PUBLICATION-TRIGNOMETRC FUNCTIONS-QUESTION BANK
  1. Prove that (cos 4 x+cos 3 x+cos 2 x)/(sin 4 x+sin 3 x+sin 2 x)=cot 3 x...

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  2. Prove that cot x cot 2 x-cot 2 x cot 3 x-cot 3 x cot x=1

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  3. Prove that tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)

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  4. Prove that cos 4(x)=1-8 sin ^(2) (x) cos ^(2) (x)

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  5. Prove that cos 6 x=32 cos ^(6) x-48 cos ^(4) x+18 cos ^(2) x-1

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  6. Find the principle and general solutions of sin x =-sqrt3/2

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  7. Find the principle and general solutions of sin x =-sqrt3/2

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  8. Find the principal and general solution of cos x = 1/2

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  9. Solve tan 2 x=-cot (x+(pi)/(3))

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  10. Solve: sin 2x-sin 4x+sin 6x =0

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  11. Solve 2 cos ^(2) x+3 sin x=0

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  12. Find the principle and general solution of the following. tan x = s...

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  13. Find the principal and general solutions of the following equations s...

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  14. Find the principal and general solutions of the following equations ...

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  15. Find the principle and general solution of the following. cosec x =...

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  16. Find the general solution of the following equations cos 4x = cos 2x

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  17. Find the general solution of the following equations cos 3x+cos x-co...

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  18. Find the general solution of the following equations sin 2x+ cos x =...

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  19. Find the general solutions for each of the following equations sec^2 2...

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  20. Find the principal and general solution of the following equation sin ...

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