Prove:-
Cot^2A - Cos^2A ÷ Cot^2A + Cos^2A = Cosec^2A - 1 ÷ Cosec^2A + 1
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) 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
HENCE PROVED
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
HENCE PROVED
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