Question

find the exact value of the composition. arccos (cos pi/2)

Answer 1

arccos(cos(pi radians) / 2) =

2.0943951 rad

Answer 2

π

0

pi divided by three

pi divided by two

Answer 3

isnt in my answer choice

Answer 4

@Tazr

Answer 5

what do you get when you compose a function with its inverse?

Answer 6

u get x

Answer 7

What is x in your case?

Answer 8

You're on the right track: f(g(x))=x, here f=acos(x), g=cos(x)

Answer 9

is it pi/2

Answer 10

You already said it earlier, for inverses, you get x back

Nice job.