limx→∞ 1−4x−13x−1 is equal to 

limx14x13x1 is equal to 

  1. A

    e12

  2. B

    e12

  3. C

    e4

  4. D

    e3

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    Solution:

    We have to find

    limx14x13x-1

    =limx1+(4)x13x1=elimx 4(3x1)x1=e12

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