For the pair of functions, find the product (fg)(x).f(x) = 5x + 4, g(x) = -x2 + 4x + 7
A. -5x3 + 16x2 + 51x + 28
B. 5x3 + 16x2 - 51x - 28
C. -5x3 - 17x2 + 51x - 28
D. -10x2 + 16x2 - 51x + 28
Answer: A
Mathematics
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?
A. ?
B. 
C. 
D. 
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A.
   ? |    |
B.
   ? |       |
C.
D.
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Verify the identity.sec 
= -csc x
What will be an ideal response?
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