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1.6.2 Coordinate geometry of the circle

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Question 13

The line y=mx−2y = mx - 2y=mx−2 is a tangent to the circle x2+6x+y2−8y+5=0x^2 + 6x + y^2 - 8y + 5 = 0x2+6x+y2−8y+5=0.

Find the two possible values of mmm, giving your answers in exact form.

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1.6.2 Coordinate geometry of the circle Questions

  1. A Level
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  3. /1.6.2 Coordinate geometry of the circle