Mathematics · Coordinate Geometry
A circle passing through the origin cuts the coordinate axes at A and B. If the straight line AB passes through a fixed point (x1, y1), then the locus of the centre of the circle is:
- 1x1/x + y1/y = 2✓
- 2xy1 + yx1 = 2
- 3x1y = xy1
- 4x1/x + y1/y = 1
Correct answer
x1/x + y1/y = 2
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