# What is the graph of #y=sin^2 x#?

##### 1 Answer

Mar 23, 2015

Here is the graph:

graph{(sinx)^2 [-10, 10, -5, 5]}

Recall the double-angle formula for cosine:

Subtract

Divide both sides by

You now have a standard cosine equation with

Amplitude =

Period =

Vertical Shift = up by

Something important to recognize, if you compare this to the graph of