The coefficient of xn−2
in the polynomial (x−1)(x−2)(x−3)……(x−n)
is
A n(n2+2)(3n+1)/24

B n(n2−1)(3n+2)/24

C n(n2+1)(3n+4)/24

D None of these

Question

The coefficient of xn−2 in the polynomial (x−1)(x−2)(x−3)……(x−n) is A n(n2+2)(3n+1)/24 B n(n2−1)(3n+2)/24 C n(n2+1)(3n+4)/24 D None of these

Pawan Prajapati · Answer

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The coefficient of xn−2 in the polynomial (x−1)(x−2)(x−3)……(x−n) is A n(n2+2)(3n+1)/24 B n(n2−1)(3n+2)/24 C n(n2+1)(3n+4)/24 D None of these

The coefficient of xn−2
in the polynomial (x−1)(x−2)(x−3)……(x−n)
is
A n(n2+2)(3n+1)/24

B n(n2−1)(3n+2)/24

C n(n2+1)(3n+4)/24

D None of these

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The coefficient of xn−2 in the polynomial (x−1)(x−2)(x−3)……(x−n) is A n(n2+2)(3n+1)/24 B n(n2−1)(3n+2)/24 C n(n2+1)(3n+4)/24 D None of these

The coefficient of xn−2 in the polynomial (x−1)(x−2)(x−3)……(x−n) is A n(n2+2)(3n+1)/24 B n(n2−1)(3n+2)/24 C n(n2+1)(3n+4)/24 D None of these

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The coefficient of xn−2
in the polynomial (x−1)(x−2)(x−3)……(x−n)
is
A n(n2+2)(3n+1)/24

B n(n2−1)(3n+2)/24

C n(n2+1)(3n+4)/24

D None of these