12th Class Mathematics Continuity and Differentiability

  • question_answer 112) If y = 3 cos (log x) + 4 sin (log x), show that x2y2 + xy1 + y = 0.  

    Answer:

    y = 3 cos (log x) + 4 sin (log x)                            Diff. agsin w.r.t. x.          X y2 + y1× 1 = ? 3 cos (log x)           = ?y           hence the result.  


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