12th Class Mathematics Continuity and Differentiability

  • question_answer 80) Diff. (x cos x)x +  w.r.t. x.  

    Answer:

    Let y = (x cos x)x +               where A = (x cos x)x             = x log x + x log cos x       Diff. w.r.t.x                               and B =                   Diff. w.r.t. x                                     [1 ? x tan x+log(x cosx)]        


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