Multiple Choice
Find the exact value using a double-angle identity.
-tan(120°)
A) 
B) 
C) 
D) 
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q63: Find the exact value of the sum.<br>-cos
Q64: Find the exact value, given that sin
Q65: Decide whether the expression is or is
Q66: Prove that the equation is an identity.<br>-<img
Q67: Prove that the equation is an identity.<br>-<img
Q69: Find the exact value by using a
Q70: Use a sum-to-product identity to rewrite the
Q71: Use a product-to-sum identity to rewrite the
Q72: Prove that the equation is an identity.<br>-tan
Q73: Find all real numbers in the interval