Question

How to solve the value of sin 1856 degree or sign 2019 degree

Answer 1

1. Divide the angle by 360 and obtain the remainder. Eg. 1856/360, remainder = 56 or 2019/360= 219

2. Fin sin of the remainder.

If remainder < 90, sin can be found by calculator.

If remainder > 90 and <180, sin a = cos a

If remainder >180 and<270, sin a = -sin a

If remainder>270 and <360, sin a = -cos a