Mathematics

Mathematics

Problem

Which of the following limits gives the derivative of a function f(x)f(x) at the point x=ax=a? a) lim⁡h→0f(a+h)+f(a)h\displaystyle \lim_{h\to0}\frac{f(a+h)+f(a)}{h} b) lim⁡h→0f(a+h)−f(a)h\displaystyle \lim_{h\to0}\frac{f(a+h)-f(a)}{h} c) lim⁡h→0f(a+h)−f(a)2h\displaystyle \lim_{h\to0}\frac{f(a+h)-f(a)}{2h} d) lim⁡h→0f(a)−f(a+h)h\displaystyle \lim_{h\to0}\frac{f(a)-f(a+h)}{h}

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