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Q:

$$ {{2^n+2^{n-1}}\over {2^{n+1} -2^n}}=?$$

  • 1
    $$ {3\over2}$$
  • 2
    2
  • 3
    3
  • 4
    $$ {2\over3}$$
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Answer : 1. "$$ {3\over2}$$"

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