circle

Related Questions

• The value of $\lambda $ , for which the circle ${{x}^{2}}+{{y}^{2}}+2\lambda x+6y+1=0$ , intersects the circle ${{x}^{2}}+{{y}^{2}}+4x+2y=0$ orthogonally is

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• A circle is concentric with the circle ${{x}^{2}}+{{y}^{2}}-6x+12y+15=0$ and has area double of its area. The equation of the circle is

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• If the circles ${{x}^{2}}+{{y}^{2}}=4,{{x}^{2}}+{{y}^{2}}-10x+\lambda =0$ touch externally, then $\lambda $ is equal to

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• The equation ${{x}^{2}}+{{y}^{2}}=0$ denotes

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• For the line $3x+2y=12$ and the circle ${{x}^{2}}+{{y}^{2}}-4x-6y+3=0$ , which of the following statements is true

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