JEE Math Practice Question
$$\mathop {\lim }\limits_{x \to \infty } \left( {{n \over {{n^2} + {1^2}}} + {n \over {{n^2} + {2^2}}} + {n \over {{n^2} + {3^2}}} + ..... + {1 \over {5n}}} \right)$$ is equal to :
- A.tan–1 (2)
- B.tan–1 (3)
- C.$${\pi \over 4}$$
- D.$${\pi \over 2}$$
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