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Approximate the value of:

$$\sum _{ n=1 }^{ 3 }{ \cfrac { 1 }{ { n }^{ 2 } } } $$

A

$0$

B

$\cfrac{49}{36}$

C

$\cfrac{11}{6}$

D

$\cfrac{28}{13}$

Accuracy 0%
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