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The circles which can be drawn to pass t...

The circles which can be drawn to pass through (1,0) and (3,0) and to touch the y-axis intersect at an angle ` theta .` Then `cos theta ` is equal to

A

`1//2`

B

`1//2`

C

`1//4`

D

`-1//4`

Text Solution

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The correct Answer is:
A
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