- #1

sk2nightfire

- 2

- 0

## Homework Statement

Find the domain/range:1)cos[arcsin(-2x)]=f(x)

2)sin[arccos(x)] + 2cos(arcsin(x)]=f(x)

3)sin[arccos(sin(arccos(x)))]

## Homework Equations

arccos

domain:{-1,1]

range[0,pi]

arcsin

domain:{-1,1]

range[-pi/2,pi/2]

tan

domain:{-infinity,infinity]

range[-pi/2,pi/2]

## The Attempt at a Solution

1)d: -1

__<__-2x

__<__1

so domain is [-1/2,1/2]

How do I find the range? Its supposed to be [0,1]

2)[-1,1] is the domain

the range is supposed to be [0,3],but why?3)for domain i got [-1,1],but range?

range Is supposed to be [0,180 degrees],but once again,I'm lost.

Last edited: