Write the product as a sum or difference containing only sines or cosines.cos(6?) cos(5?)

A. cos2(30?2)
B. [cos(11?) - sin ?]
C. [ cos ? + cos(11?)]
D. [cos(11?) - cos ?]

Answer: C

Mathematics

You might also like to view...

Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.sec ? = 8.45

A. 83.2° B. 83.00° C. 83.20° D. 83.0°

View
Mathematics

Solve. +  = - 

A. 27 B. -27 C. -28 D. empty set solution

View
Mathematics

Perform the operations. ?   ?

Fill in the blank(s) with the appropriate word(s).

View
Mathematics

Evaluate the expression using the graphs of y = f(x) and y = g(x).Evaluate (fg)(-1).

A. 0 B. 3 C. -2 D. -1

View
Mathematics