The coefficient of xn – 2 in the polynomial (x – 1) (x – 2)�(x – n) is….

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The coefficient of x^{n – 2} in the polynomial (x – 1) (x – 2)�(x – n) is

Options :-

1. -n (n + 1) (n - 1) (3n + 2)
2. n(n² - 1) (3n + 2)
3. 
4. None of these

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