Prove the following: sinxtan(x/2)+2cosx=...

Prove the following: `sinxtan(x/2)+2cosx=(frac(2)(1+tan^2(x/2)))`

Prove the following: sinxtan(x/2)+2cosx=(frac(2)(1+tan^2(x/2)))
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सिद्ध कीजिए कि - cos^(-1)((2+3cosx)/(3+2cosx))=2tan^(-1)((1)/(sqrt5)...
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सिद्ध कीजिए कि - 2tan^(-1)[(1)/(sqrt3)tan.(x)/(2)]=cos^(-1)[(1+2cosx...
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Prove that : tan^-1 [frac { (1+x)^(1/2) - (1-x)^(1/2)}{ (1+x)^(1/2) +...
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Show that: tan^-1 (frac {1-x}{1+x})= frac {1}{2} tan^-1(frac{1-x^2}{2x...
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r^2=x^2+y^2+z^2 হলে প্রমাণ করো যে, tan^-1(frac[yz][rx])+tan^-1(frac[zx...
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prove that tan^-1(sqrtx) = frac{1}{2}cos^-1(frac{1-x}{1+x}), if x in ...
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If tan^-1(frac{x-1}{x-2})+tan^-1(frac{x+1}{x+2}) = frac{pi}{4} then fi...
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Prove the following: cos^-1x = tan^-1(frac{sqrt(1-x^2)}[x}) , if x > 0...
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