Question

How do you determine if `y=sin x` is an even or odd function?

Answer 1

see below

Explanation:

definitions

`f(-x)=f(x)=>f(x)" is even"`

`f(-x)=-f(x)=>f(x)" is odd"`

`f(x)=sinx`

`f(-x)=sin(-x)=-sinx`

`:.sinx" is odd"`