Question

sina I It Casa ACOBO Cose sino

JEE/Engineering Exams

Maths

Solution

107

4.0 (1 ratings)

( frac{sin theta}{1+cos theta}+frac{(1+cos theta)}{sin theta}=operatorname{cosec} theta ) ( begin{aligned} sin ^{2} theta+(1+cos theta)^{2} &(1+cos theta) sin theta =& sin ^{2} theta+v+cos ^{2} theta+2 cos theta (1+cos theta) sin theta &=(1+cos theta) sin theta =& frac{2(1+cos theta)}{(1+cos theta) cdot sin theta)} =& 2 cos 2 theta theta cdot A end{aligned} )