Solve for N:

7!8!9!/7!+8!+9!=8!N!/9

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- Nov 15th 2011, 06:10 PMrubytuesdayfactorials
Solve for N:

7!8!9!/7!+8!+9!=8!N!/9 - Nov 15th 2011, 06:35 PMskeeterRe: factorials
- Nov 15th 2011, 07:03 PMSorobanRe: factorials
Hello, rubytuesday!

Quote:

We have: .

. . Note that: .

So we have: .

. . . . . . . . . .

Multiply by

- Nov 16th 2011, 03:42 AMrubytuesdayRe: factorials
Thank You!