Anokuhle Soganga 2022-10-02
You can still ask an expert for help

Want to know more about Discrete math?

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

You might be interested in

asked 2021-08-15
How many elements are in the set { 0, { { 0 } }?
asked 2021-08-02

Suppose that A is the set of sophomores at your school and B is the set of students taking discrete mathematics at your school. Express each of these sets in terms of A and B. 
a) the set of sophomores taking discrete mathematics in your school 
b) the set of sophomores at your school who are not taking discrete mathematics 
c) the set of students at your school who either are sophomores or are taking discrete mathematics 
Use these symbols: 

asked 2021-08-18

Discrete Mathematics Basics

1) Find out if the relation R is transitive, symmetric, antisymmetric, or reflexive on the set of all web pages.where (a,b)R if and only if 
I)Web page a has been accessed by everyone who has also accessed Web page b.
II) Both Web page a and Web page b lack any shared links.
III) Web pages a and b both have at least one shared link.

asked 2021-07-28

Let A, B, and C be sets. Show that (AB)C=(AC)(BC)
image

asked 2022-09-06
Concrete mathematics: Computing the value of certain infinite sums example
In Concrete Mathematics (Graham, Knuth, Patashnik), on page 58, there is the below example of calculating the value of an infinite sum:
k 0 1 ( k + 1 ) ( k + 2 ) = k 0 k 2 _ = lim n k = 0 n k 2 = lim n k 1 _ 1 | 0 n = 1
For that last part I don't understand how it is 1 and not -1. To start with, at 0, the summation property gives us 0:
0 1 _ 1 = 0 0 + 1 1 = 0
Then 1 is
1 1 _ 1 = 1 1 + 1 1 = 1 2
and 2 is
2 1 _ 1 = 1 2 + 1 1 = 1 3
And so on tending towards -1 for larger n. As I understand it (the subtraction vertical bar notation) if n is, say, 2 (a long way from infinity to be sure) then we'd get 1 3 0 = 1 3 . And so on getting closer to -1 as best I can tell.
asked 2022-06-16
How many strings of five decimal digits must be starting or ending with an odd number?
How many strings of five decimal digits must be starting or ending with an odd number?
Everywhere, I looked over the internet they used this method:
Thus, number of ways = 5 10 10 10 10 = 50000 ways.
Thus, number of ways = 10 10 10 10 5 = 50000 ways.
Therefore, the strings of five decimal digits that start with an odd number or end with an odd number = 50000 + 50000 = 100000.
asked 2022-08-31

New questions

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question