Answer:
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
2
)
The exact value of
sin
(
π
2
) is 1
.
-1.1
Multiply
−
1 by 1
.
−1
SIN (3 PIE/2)
