Question

Underroot 1+cos a upon 1-cos a = coseca + cot a

Answer 1

Hey

$\frac{ \sqrt{1 + cos x} }{ \sqrt{1 - cos x} } = \frac{ \sqrt{1 + cos x} }{ \sqrt{1 - cos x} } \frac{ \sqrt{1 + cos x} }{ \sqrt{1 + cos x} }= \frac{ {1 + cos x} }{ sinx } \ \ \ \ \ \ \ \ [ ( 1 - cos^2x = sin^2x ]$

= ( 1 / sinx ) + ( cos x / sinx ) = cosec x + cot x √√