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A PIN for a certain website must consist of four different digits from the set {0, 1, 2,..., 7}. (For example, 6012 or 0513).
A PIN for a certain website must consist of four different digits from the set {0, 1, 2,..., 7}. (For example, 6012 or 0513). How many different PINs are possible? Answer: The number of PINS is P(n, k), where n = The final numerical answer is and k = 4.
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Fractal Functions, Fractal Surfaces, And Wavelets
Authors: Peter R Massopust
2nd Edition
0128044705, 9780128044704
