JEE Main 2002Annual, Paper 1MathematicsEasyLimit, Continuity and Differentiability420× since 2002If f(1)=1,f′(1)=2,f\left( 1 \right) = 1,{f'}\left( 1 \right) = 2,f(1)=1,f′(1)=2, then limx→1f(x)−1x−1\mathop {\lim }\limits_{x \to 1} {{\sqrt {f\left( x \right)} - 1} \over {\sqrt x - 1}}x→1limx−1f(x)−1 isAOption A. 222BOption B. 444COption C. 111DOption D. 12{1 \over 2}21CheckSkip · show solution