Consider an infinite geometric series wi...

Consider an infinite geometric series with first term a and common ratio r. if the sum is 4 and the sencond term is 3/4 ,then

`a = (7)/(4), r = (3)/(7)`

`a = 2, r = (3)/(8)`

`a = (3)/(2), r = (1)/(2)`

`a = 3, r = (1)/(4)`

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