CAPE Pure Mathematics Unit 1 · 2008 (T&T) · Paper 1 · Question Q35
Given f(x) = x^3, f'(x) is
- (A)
\lim_{h \to 0} \left[\frac{x^3 - (x+h)^3}{h}\right] - (B)
\lim_{h \to 0} \left[\frac{(x+h) - x^3}{h}\right] - (C)
\lim_{h \to 0} \left[\frac{3x^2h + 3xh^2 + h^3}{h}\right] - (D)
\lim_{h \to 0} \left[\frac{3x^2h - 3xh^2 - h^3}{h}\right]
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