Resolver 5 sum n = 1 to n 1/((2n - 1)(2n + 1)) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\sum \frac { 1 } { ( 2 n - 1 ) ( 2 n + 1 ) }$$