(CosecA-sinA)(SecA-CosecA)=1/tanA+cotA
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(cosecA-sinA)(secA-cosA)
=(1/sinA – sinA )(1/cosA – cosA)
=[(1- sin2A)/sinA][(1-cos2A)/cosA]
=[(cos2A)/sinA][(sin2A)/cosA]
=sinA*cosA
\frac{sinA cosA}{sin^2A + cos^2A}
= \frac{1}{sin^2A/sinA cosA + cos^2A/sinA cosA }
=\frac{1}{tanA + cotA }
=rhs
I hope it is clear
Thanks
jaindevansh1234:
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