Express the sum or difference as a product of sines and/or cosines.cos 
+ cos 
A. 2 cos(2?)
B. 2 sin(2?) sin ?
C. 2 cos(2?) cos 
D. 2 sin(2?) sin 
Answer: C
Mathematics
You might also like to view...
Find the volume of the solid generated by revolving the region bounded by the given curves about the x-axis.x = 2
, x = - 2y, y = 1
A. 4?
B. 
?
C. 
?
D. 
?
Mathematics
Compute the compound interest.Tony invested $2500 at 9% compounded annually. How much will be in the account in 5 years? Round to the nearest cent.
A. $2595.17 B. $2501.68 C. $1346.56 D. $3846.56
Mathematics
Identify the equation as either linear or nonlinear by trying to write it in the form 
5x2- 2.1x = x2 - 7
A. Linear B. Nonlinear
Mathematics
Solve.-3 logt 64 = -9
A. -12 B. 12 C. 3 D. 4
Mathematics