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Clavis TMUA Set B Paper 1 · Q3

Paper 1GeometryAlgebra

The line y=2x+cy=2x+c is a tangent to the circle with equation

x2+y2−6x+4y+8=0.x^2+y^2-6x+4y+8=0.

Find the possible values of cc.

Ac=−13c=-13 or c=−3c=-3
Bc=−13c=-13 only
Cc=−3c=-3 only
Dc=−8c=-8 or c=2c=2
Ec=3c=3 or c=13c=13
Fc=−5c=-5 or c=5c=5

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