JEE Math Practice Question
If $$f\left( 1 \right) = 1,{f'}\left( 1 \right) = 2,$$ then $$\mathop {\lim }\limits_{x \to 1} {{\sqrt {f\left( x \right)} - 1} \over {\sqrt x - 1}}$$ is
- A.$$2$$
- B.$$4$$
- C.$$1$$
- D.$${1 \over 2}$$
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