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Problem 17: Find the number n of distinct permutations that can be formed from all the letters of the word UNUSUAL. (a) 35 (b) 210 (c) 840 (d) 5040 Solution: C

Problem 17: Find the number n of distinct permutations that can be formed from all the letters of the word UNUSUAL. (a) 35 (b) 210 (c) 840 (d) 5040 Solution: C

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Iwant the answers with the steps and formou for all of these questions please 17-20❤️

Back Chapter 6 -Practice Problems Solution: B Problem 17: Find the number n of distinct permutations that can be formed from all the letters of the word UNUSUAL. (a) 35 (b) 210 (c) 840 (d) 5040 Solution: C Problem 18: Find the coefficient of c³d in the expansion of (2c-3d)? Solution: D A. 64 B. - 64 C. 96 D. - 96 Problem 19: A dance class consists of 22 students, 10 women, and 12 men. How many ways are possible to select a committee of 5 men and 5 women? (a) 646646 (b) 640000 (c) 199584 (d) 299584 Solution: C(10,5)*C(12,5) Problem 20: Suppose a bookcase shelf has 5 History texts, 3 Sociology texts, 6 Anthropology texts, and 4 Psychology texts. Find the number of ways a student can choose one of each type of text a) 8 b) 18 c) 360 d) P(18) Solution: C
Transcribed Image Text:Back Chapter 6 -Practice Problems Solution: B Problem 17: Find the number n of distinct permutations that can be formed from all the letters of the word UNUSUAL. (a) 35 (b) 210 (c) 840 (d) 5040 Solution: C Problem 18: Find the coefficient of c³d in the expansion of (2c-3d)? Solution: D A. 64 B. - 64 C. 96 D. - 96 Problem 19: A dance class consists of 22 students, 10 women, and 12 men. How many ways are possible to select a committee of 5 men and 5 women? (a) 646646 (b) 640000 (c) 199584 (d) 299584 Solution: C(10,5)*C(12,5) Problem 20: Suppose a bookcase shelf has 5 History texts, 3 Sociology texts, 6 Anthropology texts, and 4 Psychology texts. Find the number of ways a student can choose one of each type of text a) 8 b) 18 c) 360 d) P(18) Solution: C
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