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,