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Mathematics, 19.05.2020 15:00 khalid7746

(a)Compute (i) 20!18! (ii) 10!6!.4! (b)find n if (n+2)!=2550⋅n!

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(a)Compute (i) 20!18! (ii) 10!6!.4! (b)find n if (n+2)!=2550⋅n!

PLZ help me...
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