Question

if tan(x/2)=cosec(x)-sin(x) ,tan^2(x/2)=

Answer 1

SOLUTION....
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•••tan (x/2) = (cosec x - sin x)................... GIVEN
➡Squaring on both sides.
••• tan^2 (x/2) = (cosec x- sin x)^2

=== cosec^x + sin^x - 2cosec(x)sin (x).

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