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Answer: Option D

Explanation:

{Option D হতে পাই, x}^{2} {+y}^{2} -x-3y=0 এর কেন্দ্র= (\frac{1}{3}, \frac{2}{3}) ∴x+y-2=0 বসিয়ে পাই, \frac{1}{2} + \frac{3}{2} -2=0⇒0=0

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