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     EduGorilla 
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    If A be the sum of the odd terms and B the sum of even terms in the expansion of (x + a)n, then the value of A2 – B2 is

    Options :-

    1. (x2 - a2)n
    2. (x2 + a2)n
    3. (x2 - a2)2n
    4. (x2 + a2)2n
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