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Question
Choose the correct alternative:
Let C be the circle with centre at (1, 1) and radius = 1. If T is the circle centered at (0, y) passing through the origin and touching the circle C externally, then the radius of T is equal to
Options
`sqrt(3)/sqrt(2)`
`sqrt(3)/2`
`1/2`
`1/4`
Solution
`1/4`
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