How do you solve the following trigonometric equation.

Prove : sin y + sin y cot^2 y = csc y

I don't get why the sin in front of the cot^2y becomes a 1 .. Can someone please explain it in detail . Please and thank you .

Question

How do you solve the following trigonometric equation.  

Prove : sin y + sin y cot^2 y = csc y 


I don't get why the sin in front of the cot^2y becomes a 1 .. Can someone please explain it in detail . Please and thank you .

irishboy123 · Answer

write it out in terms only of sin's and cos's first and it should simplify

directrix · Answer

>I don't get why the sin in front of the cot^2y becomes a 1

sin y cot^2 y

Recall that cot(y) = cos(y)/sin(y)


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