Express the product as a sum containing only sines or cosines.cos  cos 

A. [cos(12?) - sin(10?)]
B. [cos(6?) - sin(5?)]
C. cos2(11?)
D. [cos(5?) + cos(6?)]

Answer: D

Mathematics

You might also like to view...

Find the root. Assume that all variables represent positive numbers.

A. 100x2 B. 10x2 C. 31x2 D. Not a real number

View
Mathematics

Solve the problem.For f(x) = 9 - 2 and g(x) = 5 + 4. Find an equation for f - g.

What will be an ideal response?

View
Mathematics

How many distinguishable permutations of letters are possible in the word?TENNESSEE

A. 362,880 B. 3780 C. 81 D. 7560

View
Mathematics

Find the limit if it exists.

What will be an ideal response?

View
Mathematics