Math, asked by dileepkumar6300, 7 months ago

cot A - tan A = 2 cot 2A

Answers

Answered by ammara39

6

Answer:

L.H.S

=cosA/sinA-sinA/cosA

=(cos^2A-sin^2A)/sinA.cosA

=(cos2A)/(1/2.sin2A)

=2.(cos2A/sin2A)

=2.cot2A ,

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