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Solve the following problems. 9. (a) How many six-letter words without repeated letters are possible using the English alphabet? Assume that any six letters make

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Solve the following problems. 9. (a) How many six-letter "words" without repeated letters are possible using the English alphabet? Assume that any six letters make a word and note that the English alphabet has 26 letters. 26 24 25 22 2 (b) Answer the same question allowing repeated letters

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