find the value of sunnation i =1 to infinity 1/(4i-1) (4i +1)

Question

Isabella · Answer

Step-by-step explanation:                                  1                               (4i - 1) (4i + 1)    =              1                               (4×1 -1) (4×1 +1)    =                          1                                 (4-1) (4+1)    =                       1                                    4²  - 1²    =                       1                             = 1/15       16 - 1

Maria

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