Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 3, u '(1) = -5, v(1) = 6, v '(1) = -4.
(3v - u) at x = 1
A. -7
B. 21
C. -17
D. 15
Answer: A
Mathematics
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A. 
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C. -3, - 
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A. x < 
B. x ? 
C. x ? 6
D. x ? 6
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, 
? x ? ?
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D. 
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