circle

Related Questions

• The lengths of tangents from a fixed point to three circles of coaxial system are ${{t}_{1}},{{t}_{2}},{{t}_{3}}$ and if P, Q and R be the centres, then $QRt_{1}^{2}+RPt_{2}^{2}+PQt_{3}^{2}$ is equal to

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• The equation of the circle passing through the point $(-1,\ -3)$ and touching the line $4x+3y-12=0$ at the point (3, 0), is

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• If the circle ${{x}^{2}}+{{y}^{2}}=4$ bisects the circumference of the circle ${{x}^{2}}+{{y}^{2}}-2x+6y+a=0$ , then a equals

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• A circle passes through (0, 0) and (1, 0) and touches the circle ${{x}^{2}}+{{y}^{2}}=9$ , then the centre of circle is

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• The equation of the chord of contact, if the tangents are drawn from the point (5, –3) to the circle ${{x}^{2}}+{{y}^{2}}=10$ , is

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