JEE Main & Advanced Mathematics Rectangular Cartesian Coordinates Question Bank Transformation of axes and Locus

  • question_answer
    A point moves in such a way that the sum of square of its distance from the points \[A(2,0)\]and\[B(-2,0)\]is always equal to the square of the distance between A and B. The locus of the point is

    A) \[{{x}^{2}}+{{y}^{2}}-2=0\]

    B) \[{{x}^{2}}+{{y}^{2}}+2=0\]

    C) \[{{x}^{2}}+{{y}^{2}}+4=0\]

    D) \[{{x}^{2}}+{{y}^{2}}-4=0\]

    Correct Answer: D

    Solution :

    \[{{(x-2)}^{2}}+{{y}^{2}}+{{(x+2)}^{2}}+{{y}^{2}}=16\,\,\Rightarrow \,\,{{x}^{2}}+{{y}^{2}}=4\].


You need to login to perform this action.
You will be redirected in 3 sec spinner