Costheta×cos(90_theta)÷ cot(90-theta) = cos^2theeta
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Costheta.Cos(90°- theta) /Cot(90°-theta)=cos^2 theta
L.H.S.
=Cos theta.Sin theta/Tan theta
=Cos theta.Sin theta/(Sin theta/Cos theta)
=Cos^2theta.Sin theta/Sin theta
=Cos^2theta=R.H.S
L.H.S.
=Cos theta.Sin theta/Tan theta
=Cos theta.Sin theta/(Sin theta/Cos theta)
=Cos^2theta.Sin theta/Sin theta
=Cos^2theta=R.H.S
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9
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