Answers

  • Brainly User
2016-02-14T20:40:00+05:30
Let the first term be x and the common difference be d...so..x-(a-b)^3=(a+b)^3-x...so 2x=(a+b)^3+(a-b)^3=>2x=2a^3=>x=a^3=second term(ans)
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