Trig
posted by Kelly .
What is the exact value of sin^1(sin(8pi/15)?

You have to be kidding. 8PI/15
what is the exact angle of arccosine (cosine PI)? Answer: PI
posted by Kelly .
What is the exact value of sin^1(sin(8pi/15)?
You have to be kidding. 8PI/15
what is the exact angle of arccosine (cosine PI)? Answer: PI