circle

Related Questions

• The equation of a circle that intersects the circle ${{x}^{2}}+{{y}^{2}}+14x+6y+2=0$ orthogonally and whose centre is (0, 2) is

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• The points of intersection of the circles ${{x}^{2}}+{{y}^{2}}=25$ and ${{x}^{2}}+{{y}^{2}}-8x+7=0$ are

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• The radius of the circle passing through the point (6, 2) and two of whose diameters are $x+y=6$ and $x+2y=4$ is

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• If the lines $2x+3y+1=0$ and $3x-y-4=0$ lie along diameters of a circle of circumference $10\pi $ , then the equation of the circle is

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• If line $ax+by=0$ touches ${{x}^{2}}+{{y}^{2}}+2x+4y=0$ and is a normal to the circle ${{x}^{2}}+{{y}^{2}}-4x+2y-3=0$ , then value of (a,b) will be

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