How do you prove $(1-cosx) /sin = sin/( 1+cosx)$ ?

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Answer 1 · 2016-05-03T19:51:39

see below

Left Side: $= (1-cosx)/sinx xx (1+cosx)/(1+cosx)$

$=(1-cos^2x)/(sinx(1+cosx))$

$=sin^2x/(sinx(1+cosx))$

$=sinx/(1+cosx)$

$=$ Right Side

How do you prove (1-cosx) /sin = sin/( 1+cosx)(1-cosx) /sin = sin/( 1+cosx)?