Seudónimo Seudónimo

21-04-2017
Mathematics

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You need to hang seven pictures in a straight line, in how many ways can this be done?

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Darksp33d Darksp33d

21-04-2017

This is simple. It is 7 factorial, or 7!. This just means 7*6*5*4*3*2*1, which is 5040.

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