SID cos B cos B 1+sin 20+cos 20 1+ ...
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SID cos B cos B 1+sin 20+cos 20 1+ sin 20-cos 20 (A) tan e BŽcoto (A) 5 tane (C)tan cote D) care (C) tane (D) cote

JEE/Engineering Exams
Maths
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( begin{aligned} frac{1+sin 2 theta+cos 2 theta}{1+sin 2 theta-cos 20} &=frac{1+2 sin theta cos theta+left(2 cos ^{2} theta-1right)}{1+2 sin theta cos theta-left(1-2 sin ^{2} thetaright)} &=frac{2 sin theta(sin theta+cos theta)}{x sin theta+cos theta+sin theta)} &=cot theta end{aligned} )
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