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If the lines x+(a-1)y=1 and 2x+1a^(2)y=1...

If the lines `x+(a-1)y=1` and `2x+1a^(2)y=1` there `ainR-{0,1}` are perpendicular to each other, Then distance of their point of intersection from the origin is

A

`sqrt(2/5)`

B

`2/5`

C

`2/(sqrt(5))`

D

`(sqrt(2))/5`

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The correct Answer is:
A
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