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In the expansion of (a - b)^n, how does the sign of the terms alternate?

Practice Questions

1 question
Q1
In the expansion of (a - b)^n, how does the sign of the terms alternate?
  1. All terms are positive.
  2. All terms are negative.
  3. The signs alternate starting with positive.
  4. The signs alternate starting with negative.

Questions & Step-by-step Solutions

1 item
Q
Q: In the expansion of (a - b)^n, how does the sign of the terms alternate?
Solution: In the expansion of (a - b)^n, the signs alternate starting with negative due to the negative sign in front of b.
Steps: 0

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