Respuesta :

Answer: The result can be shown in multiple forms.

Exact Form:

− √ 3 /2

Decimal Form:

− 0.86602540 …

Step-by-step explanation:

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 ( π/3 )

The exact value of  

sin ( π /3 )  is  √ 3 /2 .

− √ 3 /2