Let C be the circle with centre

Question:

 Let C be the circle with centre at (1, 1) and radius = 1. If T is the circle centred at (0, y),

passing through origin and touching the circle C externally, then the radius of T is equal

to :

  1. $\frac{\sqrt{3}}{\sqrt{2}}$

  2. $\frac{\sqrt{3}}{2}$

  3. $\frac{1}{2}$

  4. $\frac{1}{4}$


Correct Option: , 4

Solution:

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