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If f = v o u and t = u(x), the chain rule gives df/dx =
A(dv/dt) + (dt/dx)
B(dv/dt)(dt/dx)
C(dt/dx)/(dv/dt)
D(dv/dt) - (dt/dx)
Answer & Solution
Correct answer: B. (dv/dt)(dt/dx)
The derivatives of the outer and inner functions are multiplied.
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