Question

What's the exact value of sin^-1 (cos pi/2)?

Answer 1

well, what's the value of cos(pi/2)?

Answer 2

Nope, just pretty much arcsin(cos pi/2) or sin^-1 (cos pi/2)

Answer 3

yeah i know that, but you need to know the value of argument of arcsin to find it out right?

cos(pi/2)=0

so, you're basically being asked arcsin(0). Now what's that?

Answer 4

Isn't arcsin(0) just 0?

Answer 5

yup!!

Answer 6

there, you have your answer!

Answer 7

Thanks.