Use sum-to-product formulas to rewrite the expression as a product.sin 
- sin 
A. -2 sin 
sin 
B. 2 cos 
cos 
C. -2 cos 
sin 
D. 2 sin 
cos 
Answer: C
Mathematics
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Solve the problem.A certain marine engine has cylinders that are 3.65 inches in diameter and 3.74 inches deep. Find the total volume of 4 cylinders (to the nearest hundredth).
A. 342.91 inches3 B. 312.91 inches3 C. 156.45 inches3 D. 39.11 inches3
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Find the greatest common factor of the terms.21m4, 189m7, 441m5
A. 3969m3 B. 21m4 C. 189m4 D. 21m3
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