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If x=1+a+a^(2)+...oo, a lt 1 and y=1+b+b...

If `x=1+a+a^(2)+...oo, a lt 1` and `y=1+b+b^(2)+...oo, b lt 1,` then `1+ab+a^(2)b^(2)+...oo :`

A

`(x+y+xy)/(x+y-1)`

B

`(x+y)/(x+y-1)`

C

`(xy)/(x+y-1)`

D

None of these

Text Solution

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The correct Answer is:
C
N/a
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