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In the expansion of (x - 1)^8, what is the coefficient of x^5?

Practice Questions

1 question
Q1
In the expansion of (x - 1)^8, what is the coefficient of x^5?
  1. -56
  2. -8
  3. 8
  4. 56

Questions & Step-by-step Solutions

1 item
Q
Q: In the expansion of (x - 1)^8, what is the coefficient of x^5?
Solution: The coefficient of x^5 in (x - 1)^8 is C(8,5) * (-1)^3 = 56 * (-1) = -56.
Steps: 0

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