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Geometry 4 Online
OpenStudy (anonymous):

For what value of λ does the line 4x+ λ y+7=0 touch the circle x^2+y^2-6x+4y-12=0

OpenStudy (anonymous):

first find the center and radius of the given circle.. the given line will be tangent to the circle if the distance of the line from the centre of the circle is equal to the radius of the circle...

OpenStudy (anonymous):

thank you

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