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3241
Kenneth Rosen Edition 7 Exercise 8.1 Question 14 (Page No. 511)
Find a recurrence relation for the number of ternary strings of length n that contain two consecutive $0s.$ What are the initial conditions? How many ternary strings of length six contain two consecutive $0s?$
Find a recurrence relation for the number of ternary strings of length n that contain two consecutive $0s.$ What are the initial conditions?How many ternary strings of le...
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May 2, 2020
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3242
Kenneth Rosen Edition 7 Exercise 8.1 Question 12 (Page No. 511)
Find a recurrence relation for the number of ways to climb $n$ stairs if the person climbing the stairs can take one, two, or three stairs at a time. What are the initial conditions? In many ways can this person climb a flight of eight stairs?
Find a recurrence relation for the number of ways to climb $n$ stairs if the person climbing the stairs can take one, two, or three stairs at a time.What are the initial ...
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May 2, 2020
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3243
Kenneth Rosen Edition 7 Exercise 8.1 Question 9 (Page No. 511)
Find a recurrence relation for the number of bit strings of length n that do not contain three consecutive $0s.$ What are the initial conditions? How many bit strings of length seven do not contain three consecutive $0s?$
Find a recurrence relation for the number of bit strings of length n that do not contain three consecutive $0s.$ What are the initial conditions?How many bit strings of l...
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218
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May 1, 2020
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3244
Kenneth Rosen Edition 7 Exercise 8.1 Question 8 (Page No. 511)
Find a recurrence relation for the number of bit strings of length $n$ that contain three consecutive $0s.$ What are the initial conditions? How many bit strings of length seven contain three consecutive $0s?$
Find a recurrence relation for the number of bit strings of length $n$ that contain three consecutive $0s.$ What are the initial conditions?How many bit strings of length...
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178
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May 1, 2020
Combinatory
kenneth-rosen
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3245
Kenneth Rosen Edition 7 Exercise 8.1 Question 7 (Page No. 510 - 511)
Find a recurrence relation for the number of bit strings of length $n$ that contain a pair of consecutive $0s$. What are the initial conditions? How many bit strings of length seven contain two consecutive $0s?$
Find a recurrence relation for the number of bit strings of length $n$ that contain a pair of consecutive $0s$.What are the initial conditions?How many bit strings of len...
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213
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May 1, 2020
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3246
Kenneth Rosen Edition 7 Exercise 8.1 Question 6 (Page No. 510)
Find a recurrence relation for the number of strictly increasing sequences of positive integers that have 1 as their first term and n as their last term, where n is a positive integer. That is, sequences $a_{1}, a_{2},\dots,a_{k},$ ... How many sequences of the type described in $(A)$ are there when $n$ is an integer with $n \geq 2?$
Find a recurrence relation for the number of strictly increasing sequences of positive integers that have 1 as their first term and n as their last term, where n is a pos...
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May 1, 2020
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3247
Kenneth Rosen Edition 7 Exercise 8.1 Question 5 (Page No. 510)
How many ways are there to pay a bill of $17$ pesos using the currency described in question $4,$ where the order in which coins and bills are paid matters?
How many ways are there to pay a bill of $17$ pesos using the currency described in question $4,$ where the order in which coins and bills are paid matters?
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May 1, 2020
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3248
Kenneth Rosen Edition 7 Exercise 8.1 Question 4 (Page No. 510)
A country uses as currency coins with values of $1$ peso, $2$ pesos, $5$ pesos, and $10$ pesos and bills with values of $5$ pesos, $10$ pesos, $20$ pesos, $50$ pesos, and $100$ pesos. Find a recurrence relation for the number of ways to pay a bill of $n$ pesos if the order in which the coins and bills are paid matters.
A country uses as currency coins with values of $1$ peso, $2$ pesos, $5$ pesos, and $10$ pesos and bills with values of $5$ pesos, $10$ pesos, $20$ pesos, $50$ pesos, and...
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May 1, 2020
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3249
Kenneth Rosen Edition 7 Exercise 8.1 Question 3 (Page No. 510)
A vending machine dispensing books of stamps accepts only one-dollar coins, $\$1$ bills, and $\$5$ bills. Find a recurrence relation for the number of ways to deposit $n$ dollars in the vending machine, where the order in which ... $10$ for a book of stamps?
A vending machine dispensing books of stamps accepts only one-dollar coins, $\$1$ bills, and $\$5$ bills.Find a recurrence relation for the number of ways to deposit $n$ ...
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May 1, 2020
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3250
Kenneth Rosen Edition 7 Exercise 8.1 Question 2 (Page No. 510)
Find a recurrence relation for the number of permutations of a set with $n$ elements. Use this recurrence relation to find the number of permutations of a set with $n$ elements using iteration
Find a recurrence relation for the number of permutations of a set with $n$ elements.Use this recurrence relation to find the number of permutations of a set with $n$ ele...
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248
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May 1, 2020
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3251
Kenneth Rosen Edition 7 Exercise 8.1 Question 1 (Page No. 510)
Use mathematical induction to verify the formula derived in Example $2$ for the number of moves required to complete the Tower of Hanoi puzzle.
Use mathematical induction to verify the formula derived in Example $2$ for the number of moves required to complete the Tower of Hanoi puzzle.
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May 1, 2020
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3252
Kenneth Rosen Edition 7 Exercise 6.6 Question 16 (Page No. 439)
The remaining exercises in this section develop another algorithm for generating the permutations of $\{1, 2, 3,\dots,n\}.$ This algorithm is based on Cantor expansions of integers. Every nonnegative integer less than $n!$ has ... between Cantor expansions and permutations as described in the preamble to question $14.$ $3$ $89$ $111$
The remaining exercises in this section develop another algorithm for generating the permutations of $\{1, 2, 3,\dots,n\}.$ This algorithm is based on Cantor expansions o...
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473
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May 1, 2020
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3253
Kenneth Rosen Edition 7 Exercise 6.6 Question 17 (Page No. 438)
The remaining exercises in this section develop another algorithm for generating the permutations of $\{1, 2, 3,\dots,n\}.$ ... all permutations of a set of n elements based on the correspondence described in the preamble to question $14.$
The remaining exercises in this section develop another algorithm for generating the permutations of $\{1, 2, 3,\dots,n\}.$ This algorithm is based on Cantor expansions o...
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527
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May 1, 2020
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3254
Kenneth Rosen Edition 7 Exercise 6.6 Question 15 (Page No. 438)
Show that the correspondence described in the preamble is a bijection between the set of permutations of $\{1, 2, 3,\dots,n\}$ and the nonnegative integers less than $n!.$
Show that the correspondence described in the preamble is a bijection between the set of permutations of $\{1, 2, 3,\dots,n\}$ and the nonnegative integers less than $n!....
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May 1, 2020
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3255
Kenneth Rosen Edition 7 Exercise 6.6 Question 14 (Page No. 438)
The remaining exercises in this section develop another algorithm for generating the permutations of $\{1, 2, 3,\dots,n\}.$ This algorithm is based on Cantor expansions of integers. Every nonnegative integer less than $n!$ has a unique ... $a_{1}, a_{2},\dots,a_{n−1}$ that correspond to these permutations. $246531$ $12345$ $654321$
The remaining exercises in this section develop another algorithm for generating the permutations of $\{1, 2, 3,\dots,n\}.$ This algorithm is based on Cantor expansions o...
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May 1, 2020
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3256
Kenneth Rosen Edition 7 Exercise 6.6 Question 11 (Page No. 438)
Show that Algorithm $3$ produces the next larger $r$-combination in lexicographic order after a given $r$-combination.
Show that Algorithm $3$ produces the next larger $r$-combination in lexicographic order after a given $r$-combination.
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May 1, 2020
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3257
Kenneth Rosen Edition 7 Exercise 6.6 Question 10 (Page No. 438)
Show that Algorithm $1$ produces the next larger permutation in lexicographic order.
Show that Algorithm $1$ produces the next larger permutation in lexicographic order.
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165
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May 1, 2020
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3258
Kenneth Rosen Edition 7 Exercise 6.6 Question 9 (Page No. 438)
Use Algorithm $3$ to list all the $3$-combinations of $\{1, 2, 3, 4, 5\}.$
Use Algorithm $3$ to list all the $3$-combinations of $\{1, 2, 3, 4, 5\}.$
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May 1, 2020
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3259
Kenneth Rosen Edition 7 Exercise 6.6 Question 8 (Page No. 438)
Use Algorithm $2$ to list all the subsets of the set $\{1, 2, 3, 4\}.$
Use Algorithm $2$ to list all the subsets of the set $\{1, 2, 3, 4\}.$
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May 1, 2020
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3260
Kenneth Rosen Edition 7 Exercise 6.6 Question 7 (Page No. 438)
Use Algorithm $1$ to generate the $24$ permutations of the first four positive integers in lexicographic order.
Use Algorithm $1$ to generate the $24$ permutations of the first four positive integers in lexicographic order.
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275
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May 1, 2020
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3261
Kenneth Rosen Edition 7 Exercise 6.5 Question 64 (Page No. 434)
Find the expansion of $(x + y + z)^{4}.$
Find the expansion of $(x + y + z)^{4}.$
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May 1, 2020
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3262
Kenneth Rosen Edition 7 Exercise 6.5 Question 63 (Page No. 434)
Prove the Multinomial Theorem: If $n$ ... $C(n:n_{1},n_{2},\dots,n_{m}) = \dfrac{n!}{n_{1}!n_{2}!\dots n_{m}!}$ is a multinomial coefficient.
Prove the Multinomial Theorem: If $n$ is a positive integer, then $\displaystyle{}(x_{1} + x_{2} + \dots + x_{m})^{n} = \sum_{n_{1} + n_{2} + \dots + n_{m} = n}\:\: C(n:n...
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May 1, 2020
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3263
Kenneth Rosen Edition 7 Exercise 6.5 Question 62 (Page No. 434)
How many different terms are there in the expansion of $(x_{1} + x_{2} +\dots + x_{m})^{n}$ after all terms with identical sets of exponents are added?
How many different terms are there in the expansion of $(x_{1} + x_{2} +\dots + x_{m})^{n}$ after all terms with identical sets of exponents are added?
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201
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May 1, 2020
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3264
Kenneth Rosen Edition 7 Exercise 6.5 Question 55 (Page No. 434)
How many ways are there to distribute six indistinguishable objects into four indistinguishable boxes so that each of the boxes contains at least one object?
How many ways are there to distribute six indistinguishable objects into four indistinguishable boxes so that each of the boxes contains at least one object?
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May 1, 2020
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3265
Kenneth Rosen Edition 7 Exercise 6.5 Question 54 (Page No. 434)
How many ways are there to distribute five indistinguishable objects into three indistinguishable boxes?
How many ways are there to distribute five indistinguishable objects into three indistinguishable boxes?
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May 1, 2020
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3266
Kenneth Rosen Edition 7 Exercise 6.5 Question 53 (Page No. 434)
How many ways are there to put six temporary employees into four identical offices so that there is at least one temporary employee in each of these four offices?
How many ways are there to put six temporary employees into four identical offices so that there is at least one temporary employee in each of these four offices?
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May 1, 2020
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3267
Kenneth Rosen Edition 7 Exercise 6.5 Question 52 (Page No. 434)
How many ways are there to put five temporary employees into four identical offices?
How many ways are there to put five temporary employees into four identical offices?
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May 1, 2020
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3268
Kenneth Rosen Edition 7 Exercise 6.5 Question 51 (Page No. 434)
How many ways are there to distribute six distinguishable objects into four indistinguishable boxes so that each of the boxes contains at least one object?
How many ways are there to distribute six distinguishable objects into four indistinguishable boxes so that each of the boxes contains at least one object?
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210
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May 1, 2020
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3269
Kenneth Rosen Edition 7 Exercise 6.5 Question 50 (Page No. 434)
How many ways are there to distribute five distinguishable objects into three indistinguishable boxes?
How many ways are there to distribute five distinguishable objects into three indistinguishable boxes?
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3270
Kenneth Rosen Edition 7 Exercise 6.5 Question 49 (Page No. 433 - 434)
In this exercise we will prove Theorem $2$ by setting up a one-to-one correspondence between the set of $r$-combinations with repetition allowed of $S = \{1, 2, 3,\dots,n\}$ and the set of $r$ ... that there are $C(n + r − 1,r)\:\: r$-combinations with repetition allowed from a set with n elements.
In this exercise we will prove Theorem $2$ by setting up a one-to-one correspondence between the set of $r$-combinations with repetition allowed of $S = \{1, 2, 3,\dots,n...
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