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Prove that cot 7 1^@/2 = (1+cos15^@)/(si...

Prove that `cot 7 1^@/2 = (1+cos15^@)/(sin 15^@)`.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
  1. If alpha and beta are the solutions of a cos theta+b sin theta=c, the...

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  2. If alpha and beta are distinct roots of the equation : a tan theta+b s...

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  3. Prove that cot 7 1^@/2 = (1+cos15^@)/(sin 15^@).

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  4. Prove that 4 cos 36^@ +cot 7 1^@/2 = sqrt1+sqrt2 +sqrt3+ sqrt4+ sqrt5+...

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  5. Prove that tan 82 (1(0))/(2)=(sqrt(3)+sqrt(2))(sqrt(2)+1) or cot 7 (...

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  8. Prove that cot theta cot 2 theta+ cot 2 theta cot 3 theta+ 2= cot thet...

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  11. If theta(1),theta(2),theta(3),".......",theta(n) are in AP whose commo...

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  13. In any triangle ABC, prove that : sin frac (A)(2) +sin frac (B)(2)+s...

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  14. In any triangle ABC, prove that : cos frac (A)(2) +cos frac (B)(2)+c...

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