Question

Can someone check please to see if i am on the right track...
1.)arc sin (-sqrt (3)/2)=-pie/3
2.)cot(tan inverse 5) =1/5
3.)cos inverse (sin 5pie/4)= -sqrt(2)/2
d)sin (sin inverse 2/3)=2/3

Answer 1

all except 3 are right

Answer 2

would it be -45 degrees/ - pie/4?

Answer 3

pi, not pie