MathematicsThe sum of coefficients in the polynomial expansion of is

The sum of coefficients in the polynomial expansion of is


  1. A
    1
  2. B
    -1
  3. C
    0
  4. D
    None of these  

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    Solution:

    The given expression: Here, we will expand the given expression, for that, we will assume the coefficients in the polynomial expansion to be We written as,
    We will put the value of x as 1 on both sides of this equation.
    On adding and subtracting the terms, we get,
    The sum of the coefficients in the given polynomial expansion is equal to -1.
    Hence, Option (2) is the correct answer.
     
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