12th Class Mathematics Continuity and Differentiability

  • question_answer 105) If y = ex sin 5x, find y2  

    Answer:

    y = ex sin 5x                        = 5ex cos 5x + ex sin 5x                   + [ex (cos 5x) 5 + sin 5x . ex]          = ?25 ex sin 5x + 5ex cos 5x +             5ex cos 5x + ex sin 5x                   = 2ex (5 cos 5x ? 12 sin 5x)  


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