prove that 1+costheta/1-costheta=(cosectheta+cottheta)thewhole square
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Given, 1+costheta/1-cos theta = 1+cos theta/1-cos theta * 1 + cos theta/1+cos theta
= (1+cos theta)^2/1-cos^2 theta
= (1+cos theta)^2/sin ^2 theta
= (1+cos theta/sin theta)^2
= (1/sin theta + cos theta/sin theta)^2
= (cosec theta + cot theta)^2.
LHS = RHS.
Hope this helps!
= (1+cos theta)^2/1-cos^2 theta
= (1+cos theta)^2/sin ^2 theta
= (1+cos theta/sin theta)^2
= (1/sin theta + cos theta/sin theta)^2
= (cosec theta + cot theta)^2.
LHS = RHS.
Hope this helps!
DPRbuddy:
thanks
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