find..?one by one plus tangent squared theta plus one by one plus cos squared theta is equal to one
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i posted Pallavi
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1 +tan2(theta) =sec2(theta)
1/sec2(theta) =cos2(theta)
Similarly
1+cot2(theta)=cosec2(theta)
1/cosec2(theta) =sin2(theta)
Hence
LHS=Cos2(theta)+sin2(theta)
=1
=RHS
Hence,
LHS=RHS
... Proved
1/sec2(theta) =cos2(theta)
Similarly
1+cot2(theta)=cosec2(theta)
1/cosec2(theta) =sin2(theta)
Hence
LHS=Cos2(theta)+sin2(theta)
=1
=RHS
Hence,
LHS=RHS
... Proved
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