http://www.mindbites.com/lesson/5089-linear-permutations-with-restrictions-510 This 69 minute perms & combs lesson introduces and works with permutations which have restrictions on the objects in the question. This lesson will show you how to answer permutation questions: - with basic restrictions - with repetition of objects Sample question: In how many ways can the letters of the word FATHER be arranged if the vowels are kept together? This lesson contains explanations of the concepts and 20 example questions with step by step solutions plus 4 interactive review questions with solutions. Lessons that will help you with the fundamentals of this lesson include: - 500 the Fundamental Counting Principle (http://www.mindbites.com/lesson/5104) - 505 Factorial Notation & Linear Permutations (http://www.mindbites.com/lesson/5105)
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