Question

find the value of sin(1050°)​

Answer 1

Remove full rotations of  

360 ° until the angle is between  0 ° and  360 °. sin ( 330 )

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the fourth quadrant.

− sin ( 30 ) The exact value of  sin ( 30 )  is  1 /2 .

− 1/2

The result can be shown in multiple forms.

Exact Form: − 1 /2

Decimal Form: - 0.5