(1+cosA)/(1-cosA) (1+cot^2A)
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Answered by
26
SOLUTION___(☆▽☆)
LHS-
(1+cot^2A)(1+cosA)(1-cosA)
=Cosec^2A(1-cos^2A)
=1/sin^2A×(sin^2A)
= 1= RHS
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Answered by
15
Answer:
Step-by-step explanation:
=(1-cosA) (1+cosA) (1+cot^2A)
=(1-cos^2A) (1+cot^2A)
=sin^2A (1+cot^2A)
=sin^2A. cosec^2A
=sin^2A. 1÷sin^2A
=1
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