circle

Related Questions

• If the straight line $4x+3y+\lambda =0$ touches the circle $2({{x}^{2}}+{{y}^{2}})=5$ , then $\lambda $ is

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• If the ratio of the lengths of tangents drawn from the point $(f,g)$ to the given circle ${{x}^{2}}+{{y}^{2}}=6$ and ${{x}^{2}}+{{y}^{2}}+3x+3y=0$ be 2 : 1, then

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• Length of the tangent from $({{x}_{1}},{{y}_{1}})$ to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ is

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• The locus of centre of the circle which cuts the circles${{x}^{2}}+{{y}^{2}}+2{{g}_{1}}x+2{{f}_{1}}y+{{c}_{1}}=0$ and ${{x}^{2}}+{{y}^{2}}+2{{g}_{2}}x+2{{f}_{2}}y+{{c}_{2}}=0$ orthogonally is

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• If the equation $\frac{K{{(x+1)}^{2}}}{3}+\frac{{{(y+2)}^{2}}}{4}=1$ represents a circle, then $K=$

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