limx→1+ x2−1+x−1×2−1 is equal to 

limx1+x21+x1x21 is equal to 

  1. A

    12

  2. B

    2+1

  3. C

    1

  4. D

    1+12

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    Solution:

    we have,

    limx1+x21+x1x21=limx1+x1(x+1+1)x1x+1=limx1+x+1+1x+1=2+12

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