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     EduGorilla 
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    If n > 3, C3 + 2C4 + 3C5 +�+ (n – 2) Cn is equal to

    Options :-

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