Question

How do you find `\sin (480)`?

Answer 1

`sqrt3/2`

Explanation:

This is assuming you don't have a calculator.

y=sinx is periodic with period `360^0`

so `sin(480)=sin(480-360)=sin120`

but `" "sintheta=sin(180-theta)`

`:.sin120=sin60 =sqrt3/2`