# Thread: need help please!

1. ## need help please!

what is the value for 2Sinˉ¹(5/6) ?

2. Originally Posted by hamadouousmane
what is the value for 2Sinˉ¹(5/6) ?
I don't believe that there is an exact answer for this. I get about 1.97022 rad.

-Dan

3. Straighten up. Run it through a calculator like the rest of us.