circle

Related Questions

• A circle passes through the origin and has its centre on $y=x$ . If it cuts ${{x}^{2}}+{{y}^{2}}-4x-6y+10=0$ orthogonally, then the equation of the circle is

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• If the line $3x-4y=\lambda $ touches the circle ${{x}^{2}}+{{y}^{2}}-4x-8y-5=0$ , then $\lambda $ is equal to

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• If the equation of the tangent to the circle ${{x}^{2}}+{{y}^{2}}-2x+6y-6=0$ parallel to $3x-4y+7=0$ is $3x-4y+k=0$ , then the values of k are

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• The equations of the normals to the circle ${{x}^{2}}+{{y}^{2}}-8x-2y+12=0$ at the points whose ordinate is –1, will be

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• The two circles which passes through $(0,a)$ and $(0,-a)$ and touch the line $y=mx+c$ will intersect each other at right angle, if

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