Express the product as a sum containing only sines or cosines.sin 
cos 
A. 
sin cos(7?)
B. 
[cos(4?) + sin(3?)]
C. 
[sin(4?) - sin(3?)]
D. 
[cos(8?) - sin(6?)]
Answer: C
Mathematics
You might also like to view...
Find the measure of the indicated angle in the figure.
A. 99° B. 54° C. 72° D. 144°
Mathematics
Complete the identity.1 - 
= ?
A. tan x B. 0 C. cos x D. cot x
Mathematics
Solve and check.
- 2 = 
A. x = 5 B. No solution C. x = -5 D. x = 0
Mathematics
Indicate whether the quotient is 0 or undefined.
A. 0 B. undefined
Mathematics