# How do you simplify the expression #cos[arcsin(x)] * sin[arccos(x)]#?

##### 1 Answer

Oct 10, 2016

#### Explanation:

Let's draw a right triangle.

In this triangle, we've chosen a leg of length

We can now use this triangle to find the product.

#=sqrt(1-x^2)/1 * sqrt(1-x^2)/1#

#=1-x^2#