The derivative of a function f at a point x = a is defined as:
Af(a+h) − f(a)
Blim(h→0) [f(a+h) − f(a)]/h
Clim(h→∞) f(a+h)
Df(a)/a
Answer & Solution
Correct answer: B. lim(h→0) [f(a+h) − f(a)]/h
Standard limit definition of derivative.
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