Summation of Determinant
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If Dr=⎛⎜⎝2r−12.3r−14.5r−1αβγ2n−13n−15n−1∣∣ ∣ ∣∣, then the value of ∑nr=1 Dr is
0
αβγ
α−2n+β−3n+γ−4n
α+β+γ
If Dr=⎛⎜⎝2r−12.3r−14.5r−1αβγ2n−13n−15n−1∣∣ ∣ ∣∣, then the value of ∑nr=1 Dr is
0
αβγ
α−2n+β−3n+γ−4n
α+β+γ