1.

The equation of the circle with centre on the y-axis and passing through the origin and the point (2, 3) is(a) x2 + y2 + 13y = 0(b) 3x2 + 3y2 + 13x + 3 = 0(c) 6x2 + 6y2 – 13x = 0(d) x2 + y2 + 13x + 3 = 0

Answer» The equation of the circle with centre on the y-axis and passing through the origin and the point (2, 3) is

(a) x2 + y2 + 13y = 0

(b) 3x2 + 3y2 + 13x + 3 = 0

(c) 6x2 + 6y2 – 13x = 0

(d) x2 + y2 + 13x + 3 = 0


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