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JEE Main & Advanced Mathematics Differential Equations Question Bank Mock Test - Differential Equations

  • question_answer
    Differential equation of the family of curves v = A/r + B, where A and B are arbitrary constants, is \[\frac{{{d}^{2}}v}{d{{r}^{2}}}+\frac{k}{r}\frac{dv}{dr}=0\]. Then the value of k is _____.

    Answer:

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