prove that
1+ cos^2A/sin^2A
= 2 cosec ^2A-1
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Answered by
10
Answer:
Step-by-step explanation:
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bhawin74:
thnx very much
Answered by
8
Answer:
Step-by-step explanation:
l.h.s
=1+1-SIN^2^2A/SIN^2A
=1+ SIN^2A/SIN^A
R.H.S
=2COSEC^2A-1
=COSEC^2 + COSEC^2A-1
=COSEC^2 +COT^2A
= 1 +COT^2 +COT^2A
=1+2COT^2A
=1 + SIN^2A/SIN^A
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