Question

How do you evaluate `sin((2pi)/3)`?

Answer 1

`sin((2pi)/3)=color(green)(sqrt(3)/2)`

Explanation:

since `sin(theta)` is defined as the `("opposite side")/("hypotenuse")` for an angle `theta`

`color(white)("XXX")sin((2pi)/3)=sqrt(3)/2` (as can be seen form the diagram above)