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Let A, be the sum of the first n terms o...

Let A, be the sum of the first n terms of the geometric series `704 + (704)/(2) +(704)/(4) +(704)/(8)+ cdots` and `B_(n)` , be the sum of the first n terms of the geometric series `1984 - (1984)/(2) + (1984)/(4) -(1984)/(8) + cdots`
If `A_(n), =B_(n)`, then the value of n is (where n `in` N).

A

4

B

5

C

6

D

7

Text Solution

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The correct Answer is:
B
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