Plzz solve this last date to submit is 14/5/19
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L.H.S= cot^2theta+cosec^2theta-2cotthetacosectheta
=> cos^2theta/sin^2theta+1/sin^2theta-2costheta/sin^2theta
=> cos^2theta+1-2costheta/sin^2theta
=> (costheta-1)^2/1-cos^2theta
=> (costheta-1)(costheta-1)/1+costheta*(1-costheta)
=> 1-costheta/1+costheta.....
AyushGholve:
How to mark ?
not understand after step no. 2
Plzz explain
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