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Consider an infinite geometric series wi...

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

A

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

B

`a=2,r=3/8`

C

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

D

`a=3,r=1/4`

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The correct Answer is:
D
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