Maths-
General
Easy

Question

If the line y = x + 3 meets the circle x squared plus y squared equals a squared at A and B, then equation of the circle on AB as diameter is

  1. x squared plus y squared plus 3 x minus 3 y minus a squared plus 9 equals 0
  2. x squared plus y squared minus 3 x plus 3 y minus a squared plus 9 equals 0
  3. x squared plus y squared plus 3 x plus 3 y minus a squared plus 9 equals 0
  4. None of these.

The correct answer is: x squared plus y squared plus 3 x minus 3 y minus a squared plus 9 equals 0

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