Each character in a password is either a digit [0-9] or lowercase letter [a-z]. How many valid passwords are there with the given restriction(s)? Length is 17. No character repeats. Must contain: a Ex: P(11, 4) * P(4, 3) Write permutations as: P(n, k)
Each character in a password is either a digit [0-9] or lowercase letter [a-z]. How many valid passwords are there with the given restriction(s)? Length is 17. No character repeats. Must contain: a Ex: P(11, 4) * P(4, 3) Write permutations as: P(n, k)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 85E
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