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1.3 Coordinate geometry in the (x, y) plane

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Question 32

The circle with equation x2+y2−10x+ky+20=0x^2 + y^2 - 10x + ky + 20 = 0x2+y2−10x+ky+20=0 has radius 3.

Find the two possible values of the constant kkk.

[4]

1.3 Coordinate geometry in the (x, y) plane Questions

  1. A Level
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  3. /1.3 Coordinate geometry in the (x, y) plane