If the sum of odd terms in the expansion (x + a)n is A and the sum of even terms is B, then….

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If the sum of odd terms in the expansion (x + a)ⁿ is A and the sum of even terms is B, then

Options :-

1. AB = 1/4 (x - a)²ⁿ - (x + a)²ⁿ
2. 2AB = (x + a)²ⁿ - (x - a)²ⁿ
3. 4AB = (x + a)²ⁿ - (x - a)²ⁿ
4. None of these

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