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) = -3.
(3v - u) at x = 1
A. 21
B. -4
C. 15
D. -14
Answer: B
Mathematics
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