what is the expression 400!/398! equivalent to?

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what is the expression 400!/398! equivalent to?

ultmage11234 Jan 31, 2015

0 users composing answers..

Best Answer

+118687

+5

399×400

because

398!=1×2×3...×398

and

400!=1×2×3....×398×399×400

So

all the other factors cancel out. :)

Melody Feb 1, 2015

1⁺⁰ Answers

+118687

+5

Best Answer

399×400

because

398!=1×2×3...×398

and

400!=1×2×3....×398×399×400

So

all the other factors cancel out. :)

Melody Feb 1, 2015

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