Question #10e88

1 Answer
Nov 7, 2017

Below

Explanation:

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

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

(((1-cosx)(1-cos(x)))/sin^2(x))((1cosx)(1cos(x))sin2(x))

convert sin^2(x)sin2(x)

(((1-cosx)(1-cos(x)))/(1-cos^2(x)))((1cosx)(1cos(x))1cos2(x))

Apply difference of two squares

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