Question

true or false geometry question!!
will post below

Answer 1

The range of f(x) = sin(x) is \[-1\le y \le 1\] true or false

Answer 2

does it matter that the variable is y?

Answer 3

The range of sin(x) that you wrote above it is correct.

Answer 4

I think y is a variable to represent this range so as long as \[y \in \mathbb{R} \] then I think its ok