JEE Math Practice Question
The sum $$\sum\limits_{n = 1}^{21} {{3 \over {(4n - 1)(4n + 3)}}} $$ is equal to
- A.$$\frac{7}{87}$$
- B.$$\frac{7}{29}$$
- C.$$\frac{14}{87}$$
- D.$$\frac{21}{29}$$
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