Express the sum or difference as a product of sines and/or cosines.sin (2?) - sin (4?)
A. 2 sin (3?) cos ?
B. 2 cos (2?) cos (3?)
C. -2 sin ?
D. -2 sin ? cos (3?)
Answer: D
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Write the indicated term of the given sequence. (ak) = 7(3k); a2
A. 567 B. 21 C. 63 D. 189
Determine whether the given number is a solution of the inequality.x > -12, -7.34
A. Yes B. No
Find the exact value of the expression.sin-1 
A. 
B. 
C. 
D. 
Establish the identity.
+ 
= 2 tan 2 x
What will be an ideal response?