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How many different 10 letter words real or imaginary can be formed from the following letters w, s, f, m, h, r, s, d, a, m?

Respuesta :

10! = 3628800

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For the first letter you have ten options, the second you have 9, the third you have 8.. etc. So 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1

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