Express the product as a sum containing only sines or cosines.cos(3?) cos(6?)

A. [cos(9?) - sin(3?)]
B. [cos(3?) + cos(9?)]
C. [cos(9?) - cos(3?)]
D. cos2(12?2)

Answer: B

Mathematics

You might also like to view...

Find the unknown coordinate so that the ordered pair is a solution to the given equation.5x - 4y = 8, (-4, ? )

A. -7 B. 5 C. -5 D. 7

View
Mathematics

Solve the equation by completing the square.4x2 + 24x + 11 = 0

A.
B.
C.
D.

View
Mathematics

Simplify by factoring out the given factor.(q + 6)-3/7  + (q + 6)-1/7  + (q + 6) 1/7; (q + 6)-3/7

A. (q + 6)-3/7 [1 + (q + 6) -2/7 + (q + 6) -4/7] B. (q + 6)-3/7 [1 + (q + 6)1/7 + (q + 6)3/7] C. (q + 6)-3/7 [1 + (q + 6)4/7 + (q + 6)6/7] D. (q + 6)-3/7 [1 + (q + 6) 2/7 + (q + 6)4/7]

View
Mathematics

Write a numerical expression for the phrase and simplify it. more than the sum of -  and 

A.  + ;  
B.  + ;  
C.  + ; - 
D.  + ;  

View
Mathematics