Express the sum or difference as a product of sines and/or cosines.cos (10?) - cos (4?)

A. -2 cos (7?) sin (3?)
B. 2 cos (3?)
C. 2 cos (7?) cos (3?)
D. -2 sin (7?) sin (3?)


Answer: D

Mathematics

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Graph the function.y = -3 csc 

A.

B.

C.

D.

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Solve for base in the problem. Round to the nearest hundredth, if necessary.60% of    pounds is 90 pounds.

A. 54 B. 15 C. 1,500 D. 150

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Provide an appropriate response.Plot the point  and find other polar coordinates (r, ?) of the point for which:  (a) r > 0, -2? ? ? < 0  (b) r < 0, 0 ? ? < 2?  (c) r > 0, 2? ? ? < 4?

A. (a) , (b) , (c) 

B. (a) , (b) , (c) 

C. (a) , (b) , (c) 

D. (a) , (b) , (c) 

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