PLEASE HELP KAR DO.....
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see your formulas dairy and do easily.
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answer:1. sin theta. cot theta+sin theta.cosec theta=1+cos theta
we can write cot theta=cos theta
__________
sin theta
cosec theta=. 1
______
sin theta
sin theta. cos theta
----------------- + sin theta. 1/sin theta
sin theta
cos theta+1=1+cos theta.
2. 1/1+tan^2 theta + 1/1+ cot^2 theta=1
= 1/sec^2 theta+1/cosec^2 theta
= cos^2 theta+sin^2 theta
=1
since 1/sec theta=cos theta
1/cosec theta=sin theta
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