circle

Related Questions

• The length of the common chord of the circles ${{(x-a)}^{2}}+{{(y-b)}^{2}}={{c}^{2}}$ and ${{(x-b)}^{2}}+{{(y-a)}^{2}}={{c}^{2}}$ , is

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• If the straight line $y=mx+c$ touches the circle ${{x}^{2}}+{{y}^{2}}-4y=0$ , then the value of c will be

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• The radical axis of two circles and the line joining their centres are

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• If the line $x+2by+7=0$ is a diameter of the circle ${{x}^{2}}+{{y}^{2}}-6x+2y=0$ , then $b=$

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• Two tangents drawn from the origin to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ will be perpendicular to each other, if

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