Evaluate lim->4 sin(2y)/tan(5y)

Question

Here is what I have so far. I am not sure the next steps. Can someone help me?

1. sin(2y)/(sin(5y)*cos(5y))

2. (sin(2y)*cos(5y))/sin(5y)

Answer 1

Go on :

wolframalpha dot com

When page be open in rectangle type:

limit sin(2y)/tan(5y) as y->4

and click option =

When you see result click option :

Show steps