Question #10e88

1 Answer
Nov 7, 2017

Below

Explanation:

Convert cot to cos/sin
(1/sin(x)-(cos(x)/sin(x)))^2=

((1-cos(x))/sin(x))^2

(((1-cosx)(1-cos(x)))/sin^2(x))

convert sin^2(x)

(((1-cosx)(1-cos(x)))/(1-cos^2(x)))

Apply difference of two squares

(1-cosxcancel(1-cos(x)))/(1+cos(x)cancel(1-cos(x))