The number of terms whose values depend on x in the expansion of x2−2+1x2n is

The number of terms whose values depend on x in the expansion of x22+1x2n is

  1. A

    2n

  2. B

    2n + 1

  3. C

    2n  1 

  4. D

    0

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    Solution:

    x22+1x2n=x1x2n

    Number of terms in the expansion is (2n+1) out of 

    which just one is independent of x.

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