Multiple Choice
Use a sum or difference identity to find the exact value.
-sin (255°)
A)
B)
C)
D)
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q15: Simplify the expression.<br>-<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8458/.jpg" alt="Simplify the expression.
Q16: Find all angles in [0°, 360°) that
Q17: Prove that the equation is an identity.<br>-cos
Q18: Decide whether the expression is or is
Q19: Find all real numbers that satisfy the
Q21: Find all values of x in the
Q22: Find the exact value of the sum.<br>-sin
Q23: Identify the equation as either an identity
Q24: Express the given trigonometric function in terms
Q25: Find all real numbers in the interval