. Find the value of sin 120°
The unit circle, the value of sin120 degrees can be determined using other angles such as 60 degrees and 180 degrees which are derived from trigonometry tables.
180°- 60° = 120°
The trigonometric identity sin(180°- a) = sin a
sin (180°- 120°) = sino 120 degrees
Hence, sine 120 degrees = sin 60 degree
Hence, the value of sin 120 degrees is .
the value of sin 120 degrees is