JEE Main & Advanced Mathematics Differentiation Question Bank Derivative at a point Standard Differentiation

  • question_answer
    If \[y={{e}^{\sqrt{x}}}\], then  \[\frac{dy}{dx}\]equals                                                [SCRA 1996]

    A)            \[\frac{{{e}^{\sqrt{x}}}}{2\sqrt{x}}\]

    B)   \[\frac{\sqrt{x}}{{{e}^{\sqrt{x}}}}\]

    C)            \[\frac{x}{{{e}^{\sqrt{x}}}}\]

    D)  \[\frac{2\sqrt{x}}{{{e}^{\sqrt{x}}}}\]

    Correct Answer: A

    Solution :

               \[y={{e}^{\sqrt{x}}}\]Þ \[\frac{dy}{dx}={{e}^{\sqrt{x}}}.\frac{d}{dx}\sqrt{x}\] Þ  \[\frac{dy}{dx}=\frac{{{e}^{\sqrt{x}}}}{2\sqrt{x}}\].


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