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उस वृत्त का समीकरण ज्ञात कीजिए जो बिंदुओं `(2, 3)` तथा `(-1, 1)` से होकर जाता है तथा जिसका केंद्र रेखा `x-3y-11=0` पर स्थित है|

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Correct Answer - `x^(2)+y^(2)-7x+5y-14=0`
`(-g, -f)`, सरल रेखा पर स्थित है,
`:. -g+3f=11` ...(i)
`x^(2)+y^(2)+2gx+2fy+c=0`, में `(2, 3)` तथा `(-1, 1)` क्रमवार रखने पर,
`4g+6f+c=-13` ...(ii)
व `-2g+2f+c=-2` ...(iii)
समीकरण (i), (ii) व (iii) को g f व c के लिए हल करने पर,

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