Math, asked by shivang2003, 1 year ago

why zero factorial (0!) is one (1) ?

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Answered by Anonymous

Answer:

0 factorial is used mainly in permutation and combination. In that field of maths, it denotes the number of ways in which 0 things can be arranged in 0 places, which equals one (the only way is not arranging anything, that's the one way). So, 0 factorial is equal to 1.

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