circles

Asked by  | 12th Oct, 2008, 01:11: PM

Expert Answer:

 

Prove this by contradiction :

Let it not pass through the centre .

Let O be the centre , then OP is perpendicular to the tangent t .

But O'P and Op can not both be tangent to t at the point P

Answered by  | 12th Oct, 2008, 10:57: PM

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