# Math Help - integration of inverse trig.

1. ## integration of inverse trig.

What is the integral of sin(-1)x + cos(-1)x?
I know that it equals pi/2 so does that mean that the integral is (pi)x/2?

thank you for any help =)

2. that identity only holds for $|x|\le1.$

3. Hello christina
Originally Posted by christina
What is the integral of sin(-1)x + cos(-1)x?
I know that it equals pi/2 so does that mean that the integral is (pi)x/2?

thank you for any help =)
Yes, give or take a constant of integration, and provided the values of $x$ lie in a suitable range.