Answer: The result can be shown in multiple forms.
Exact Form:
− √ 3 /2
Decimal Form:
− 0.86602540 …
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