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12-02-2021
Mathematics

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What is the meaning of ‘!’ In math and how do I use it?

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12-02-2021

In math, the '!' sign are used in factorial. Factorial is multiplications on numbers itself and with another numbers that less than the number itself. Example :

5! =5x4x3x2x1 or nx(n-1)x(n-2)...2x1

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