Math, asked by muralapothuraju5, 3 months ago

prove that cosec2A-cos2A=tanA

Answers

Answered by lakshmimaruboina8688

1

Step-by-step explanation:

COSEC2A - COT2A = TANA

LHS= 1/sin2A - cos2A/sin2A

=1-cos2A/sin2A

cos2A = 1-2sin2A

sin2a =2sinAcosA

BY USING THESE

LHS= [1- (1-2sin2A)]/2sinAcosA

=2sin2A/2sinAcosA=sinA/cosA

=TanA = RHS

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