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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer
    The co-axial system of circles given by\[{{x}^{2}}+{{y}^{2}}+2gx+c=0\] for \[c<0\] represents :

    A)  intersecting circles

    B)  non intersecting circles

    C)  touching circles

    D)  touching or non-intersecting circles

    Correct Answer: A

    Solution :

    \[{{x}^{2}}+{{y}^{2}}+2g\,x+c=0\] \[\because \] fan lily of circle passing through point of intersection of two circles is given by                 \[S+\lambda \,S=0\] \[\therefore \] option a is correct


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