(sec+cos)(sec-cos)=tan^2+sin^2
and
(cosec+sin)=cot^2+cos^2
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(i)LHS=(sec+cos)(sec-cos)=(sec^2-cos^2)
=(1+tan^2)-(1-sin^2)
=1+tan^2-1+sin^2
=tan^2+sin^2=RHS
(ii) I am unable to solve it.
I AM REALLY SORRY FOR THAT.
=(1+tan^2)-(1-sin^2)
=1+tan^2-1+sin^2
=tan^2+sin^2=RHS
(ii) I am unable to solve it.
I AM REALLY SORRY FOR THAT.
rajesh205:
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