L.H.S
cot^2a + 1
=cos^2a/sin^2a + 1
=(cos^2a + sin^2a)/sin^2a
=1/sin^2a
=cosec^2a
R.H.S proved
Written on July 10, 2018, 3:21 p.m.
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L.H.S
cot^2a + 1
=cos^2a/sin^2a + 1
=(cos^2a + sin^2a)/sin^2a
=1/sin^2a
=cosec^2a
R.H.S proved
Written on July 10, 2018, 3:21 p.m.