Use the product-to-sum formula to write the given product as a sum or difference.
?
?
A. ?
B. 
?
C.
?
D.
?
E.
?
Answer: C
Mathematics
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Find the value.Let f(x, y, z) = 
+ z2. Find f(- 
, 9, -4).
A. 13
B. (- 
, 9, -4) is not in the domain of f.
C. 16
D. 19
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Decide whether the statement is true or false.For every real number r, r < 7 or r > 6.
A. True B. False
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Find the limit as x approaches c of the average rate of change of the function from c to x.c = -3; f(x) = 2x2 + 3
A. 18 B. -12 C. Does not exist D. -9
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Write in terms of i.
A. -3
B. 3
C. 3i
D. -3i
Mathematics