Express the product as a sum containing only sines or cosines.cos 
cos 
A. 
cos2 (5?)
B. 
[cos (2?) + cos (3?)]
C. 
[cos (6?) - sin (4?)]
D. 
[cos (3?) - sin (2?)]
Answer: B
Mathematics
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Complete.7 ft = 
in
A. 252 B. 28 C. 84 D. 21
Mathematics
Find dy/dt.y = t9(t4 + 2)5
A. 9t8(t4 + 2)4(20t4 + 2) B. t8(t4 + 2)4(29t4 + 18) C. t9(t4 + 2)4(29t3 + 18) D. 180t34(t4 + 2)4
Mathematics
Provide an appropriate response.Simplify: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Write the numerator and denominator of the fraction as a product of prime factors. Then use the prime factorization to write the fraction in lowest terms.
A. 
= 
B. 
= 
C. 
= 
D. 
already in lowest terms
Mathematics