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Calculate the coefficient of x^2 in the expansion of (x + 1/2)^8. (2021)

Practice Questions

1 question
Q1
Calculate the coefficient of x^2 in the expansion of (x + 1/2)^8. (2021)
  1. 28
  2. 56
  3. 70
  4. 84

Questions & Step-by-step Solutions

1 item
Q
Q: Calculate the coefficient of x^2 in the expansion of (x + 1/2)^8. (2021)
Solution: The coefficient of x^2 is C(8,2) * (1/2)^6 = 28 * 1/64 = 28/64 = 7/16.
Steps: 0

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