circle

Related Questions

• The number of circles touching the lines $x=0$ , $y=a$ and $y=b$ is

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• The equation of the circle through the points of intersection of ${{x}^{2}}+{{y}^{2}}-1=0$ , ${{x}^{2}}+{{y}^{2}}-2x-4y+1=0$ and touching the line $x+2y=0$ , is

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• The condition that the circle ${{(x-3)}^{2}}+{{(y-4)}^{2}}={{r}^{2}}$ lies entirely within the circle ${{x}^{2}}+{{y}^{2}}={{R}^{2}},$ is

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• The value of k so that ${{x}^{2}}+{{y}^{2}}+kx+4y+2=0$ and $2({{x}^{2}}+{{y}^{2}})-4x-3y+k=0$ cut orthogonally is

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• The equation of circle which touches the axes of coordinates and the line $\frac{x}{3}+\frac{y}{4}=1$ and whose centre lies in the first quadrant is ${{x}^{2}}+{{y}^{2}}-2cx-2cy+{{c}^{2}}=0$ , where c is

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