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Consider all 5 letter "words" made from the letters a through h. (Recall, words are just strings of letters, not necessarily actual English words.) a. How many of these words are there total? b. How many of these words contain no repeated letters? c. How many of these words start with the sub-word "aha"?

Consider all 5 letter "words" made from the letters a through h. (Recall, words are just strings of letters, not necessarily actual English words.) a. How many of these words are there total? b. How many of these words contain no repeated letters? c. How many of these words start with the sub-word "aha"?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Kindly solve question number 12. Just number 12 questions from "a" to "e"

Index 11. Let A, B, and C be sets. a. Find |(AUC) B| provided |A| = 50, |B| = 45, |C| = 40, |An B| = 20, |AnC| = 15, |BC| = 23, and An BnC| = 12. b. Describe a set in terms of A, B, and C with cardinality 26. ► Hint. 12. Consider all 5 letter "words" made from the letters a through h. (Recall, words are just strings of letters, not necessarily actual English words.) S a. How many of these words are there total? b. How many of these words contain no repeated letters? c. How many of these words start with the sub-word "aha"? d. How many of these words either start with "aha" or end with "bah" or both? ► Solution. Activate < Prev e. How many of the words containing no repeats also do not contain the sub-word "bad"? Q Search D A Up M L - e SAMSUNG
Transcribed Image Text:Index 11. Let A, B, and C be sets. a. Find |(AUC) B| provided |A| = 50, |B| = 45, |C| = 40, |An B| = 20, |AnC| = 15, |BC| = 23, and An BnC| = 12. b. Describe a set in terms of A, B, and C with cardinality 26. ► Hint. 12. Consider all 5 letter "words" made from the letters a through h. (Recall, words are just strings of letters, not necessarily actual English words.) S a. How many of these words are there total? b. How many of these words contain no repeated letters? c. How many of these words start with the sub-word "aha"? d. How many of these words either start with "aha" or end with "bah" or both? ► Solution. Activate < Prev e. How many of the words containing no repeats also do not contain the sub-word "bad"? Q Search D A Up M L - e SAMSUNG
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