tan(A)/(2)=(1-cos A)/(sin A)...

`tan(A)/(2)=(1-cos A)/(sin A)`

tan(A)/(2)=(1-cos A)/(sin A)
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cos^2A-sin^2A=(1-tan^2A)/(1+tan^2A)
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sin cot ^ (- 1) cos tan ^ (- 1) 2
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sin cot ^ (- 1) cos tan ^ (- 1) 2 =
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If sin A= cos A, then evaluate tan A+ sin^(2) A+1.
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यदि alpha = tan^(-1)(1/2)+tan^(-1)(1/3), beta = cos^(-1)(2/3)+cos^(-...
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सिद्ध करे की (cos A- sin A)/(cos A+ sin A)=(1- tan A)/(1+ tan A)
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सिद्ध करे की sin A + cos A =(cos A)/(1-tan A)+(tan A.sinA)/(tan A-1)
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sin(sin^(-1)((1)/(3))+sec^(-1)(3))+cos(tan^(-1)(1/2)+tan^(-1)2)=
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