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If tan theta (cos alpha+ sin beta), then...

If `tan theta (cos alpha+ sin beta)`, then show that one value of `"tan" (alpha)/(2) "tan" ((pi)/(4)-(beta)/(2))`.

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CHHAYA PUBLICATION-MISCELLANEOUS EXAMPLES-TRIGONOMETRY
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  7. If alpha+ beta=(pi)/(2) and beta+ gamma= alpha then prove that tan alp...

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  8. theta and theta(2) are two distinct values of theta[ 0 le theta(1) 2p...

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  10. Find all the values of alpha for which the equation sin ^(4) x+ cos^(4...

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  13. If (cos alpha+ cos beta+ cos gamma)/( cos (alpha+ beta+ gamma))=(sin a...

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  14. If a tan x+ b tan y+ c tan z=m, then show that the minimum value of ta...

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  15. Prove thattan (alpha+ (pi)/(3)) tan (alpha-(pi)/(3))+ tan alpha tan (a...

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  16. If sin alpha+ sin gamma+ sin alpha sin beta sin gamma=0, show that cos...

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  17. If cos alpha+ cos beta+ cos gamma + cos alpha cos beta cos gamma=0, sh...

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  18. Given the product p of sines of the angles of a triangle and the pro...

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  19. If 0 lt x lt pi and sin x+ sin^(2) x+ sin^(3)x=1, find the minimu valu...

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