# How do you graph #y = cos(90-A)# as sinA?

##### 1 Answer

Sep 17, 2015

Just graphing it.

#### Explanation:

There are many ways to go around and show this, the easiest is simply plugging the 5 main values and show that it matches (even though this isn't a proof it's enough to understand)

We can proof this though, by using the property

So

As we've seen on the list above,