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AP EAMCET202022 Sep 2020Evening ShiftMathematicsCircleActual

Find the area of the circle (x+1)(x+2)+(y-1)(y+3)=0

Options

  1. A17 4
  2. B17 2
  3. C2 17
  4. D3

Correct answer

A. 17 4

Step-by-step solution

Given circle is, aligned &(x+1)(x+2)+(y-1)(y+3)=0 & x^2+y^2+3 x+2 y-1=0 & 2 g=3 & g= 3 2 & 2 f=2 & f=1 & c=-1 & r= g^2+f^2-c = 9 4 +1+1 & r= 17 4 aligned Hence, option (1) is correct.

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