How do i simplify the following:
Follow Math Help Forum on Facebook and Google+
Hello, mx-! Simplify: . Recall that an inverse trig expression is just "some angle."
So we have: . , where: . . . This means: . is in a right triangle with:
Using Pythagorus: . . . Hence: .
We want: .
Substitute  and : .
Originally Posted by mx- How do i simplify the following: Realize that is an angle, whose value is providing that . Mathematically,
Now use double angle formula:
View Tag Cloud