Flag Analytical Geometry> Prove that the tangent to a circle x2+y2=5x^2+y^2=5 at t
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Prove that the tangent to a circle x2+y2=5x^2+y^2=5 at the point 11,2-2 also touches the circle x2+y2x^2+y^2 8x+6y+20-8x+6y+20 =0=0 and find its point of contact.

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Ram lakhan Meena , 7 Years ago
Grade 12th pass
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Harsh

Last Activity: 7 Years ago

Firstly find the slope of the tangent at 1,-2 using condition of tangency. Then find the distance of the line obtained with slope and point 1,-2 from centre of other circle. IDistance will be equal to other circle radii.

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