JEE Main & Advanced Mathematics Differentiation Question Bank Self Evaluation Test - Limits and Derivatives

  • question_answer
    \[\underset{x\to \infty }{\mathop{\lim }}\,\frac{{{n}^{p}}{{\sin }^{2}}(n!)}{n+1},0<p<1\] is equal to

    A) 0

    B) \[\infty \]

    C) 1

    D) None of these

    Correct Answer: A

    Solution :

    [a] Given limit can be written as \[\underset{n\to 0}{\mathop{\lim }}\,\frac{{{\sin }^{2}}(n!)}{{{n}^{1-p}}(1+1/n)}(0<p<1)\] \[=\frac{Some\text{ }real\text{ }number\text{ }in[0,1]}{\infty }=0\]\[(\because 1-p>0)\]


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