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The lines 2x-3y = 5 and 3x-4ydiameters of a circle of area 1Then equation of circle is1) (x + 1)2 +(y+1)2 = 492) (x - 1)2 + (y – 1)2 = 493) (x - 1)2 +(y + 1)2 = 494) (x+1)2 +(y – 1)2 = 49 |
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Answer» Center is the point of intersection of diagonals. ⇒2x−3y=5 ⇒3x−4y=7 Solving SIMULTANEOUS EQUATION, x=1,y=−1 Center =(1,−1) For radius r ( LET ) ⇒r=π154 ⇒22154×7=7 Equation - ⇒(x−1)2+(y+1)2=72 ⇒x2+1−2x+y2+1+2y=49 ⇒x2+y2−2x+2y=49−2 ⇒x2+y2−2x+2y=47 Hence, the answer is x2+y2−2x+2y=47. |
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