A. \(f''\left( 1 \right) = \mathop {\lim }\limits_{x \to 1} \frac{{f\left( x \right) - f\left( 1 \right)}}{{x - 1}}.\)
B. \(f''\left( 1 \right) = \mathop {\lim }\limits_{x \to 1} \frac{{f'\left( x \right) - f'\left( 1 \right)}}{{x - 1}}.\)
C. \(f''\left( 1 \right) = \mathop {\lim }\limits_{x \to 1} \frac{{f\left( x \right)}}{x}.\)
D. \(f''\left( 1 \right) = \mathop {\lim }\limits_{x \to 1} \frac{{f\left( 1 \right)}}{{x - 1}}.\)
B
\(f''\left( 1 \right) = \mathop {\lim }\limits_{x \to 1} \frac{{f'\left( x \right) - f'\left( 1 \right)}}{{x - 1}}.\)
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