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If tan beta=(tan alpha + tan gamma)/(1+ ...

If `tan beta=(tan alpha + tan gamma)/(1+ tan alpha . tan gamma)`
Prove that `sin 2 beta =(sin 2 alpha + sin 2 gamma)/(1+ sin 2 alpha . Sin 2 gamma)`

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MOTION-TRIGNOMETRIC RATIOS & IDENTITIES -Exercise -3
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  8. If phi is the exterior angle of a regular polygon of n sides and theta...

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  17. Where n is some integer then answer the following question The value...

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  18. If for n obtained in above question sin^(n) A= x then sin A sin 2A sin...

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  19. If degree of polynomal obtained in previous question is p and (p-5) + ...

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