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If (1 + x)^(n) = C(0) = C(1) x + C(2) x...

If ` (1 + x)^(n) = C_(0) = C_(1) x + C_(2) x^(2) + …+ C_(n) x^(n)` ,
find the values of the following
`underset(0leile jlen)(sumsum)(i +j)(C_(i)pmC_(j) )^(2)`

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Verified by Experts

The correct Answer is:
`n^(2) . 2^(n) + {2^(2n-1) - (2n!)/(2(n!)^(2))}`
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ARIHANT MATHS-BIONOMIAL THEOREM-Exercise (Subjective Type Questions)
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