circle

Related Questions

• $x=7$ touches the circle ${{x}^{2}}+{{y}^{2}}-4x-6y-12=0$ , then the coordinates of the point of contact are

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• The equation of line passing through the points of intersection of the circles $3{{x}^{2}}+3{{y}^{2}}-2x+12y-9=0$ and ${{x}^{2}}+{{y}^{2}}+6x+2y-15=0$ , is

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• A circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ passing through $(4,\ -2)$ is concentric to the circle ${{x}^{2}}+{{y}^{2}}-2x+4y+20=0$ , then the value of c will be

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• A circle with centre (a, b) passes through the origin. The equation of the tangent to the circle at the origin is

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• A point inside the circle ${{x}^{2}}+{{y}^{2}}+3x-3y+2=0$ is

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