# New post in Discrete-mathematics

## What is the degree of a vertex in the complete graph $K_n$?

January 21st, 2023

July 24th, 2022

## find sum of n terms of the sequence 1.3.(2^2) + 2.4.(3^2)+3.5.(4^2)+.......

November 4th, 2022

## Let P(x,y,z) denote the statement x+y <=z. What is the truth value of the following and explain

December 29th, 2022

## Find a quadratic polynomial which when divided by (x-1), (x-2), (x-3) leaves remainders 11, 22, 37 respectively.

August 18th, 2022

July 23rd, 2022

## Prove that running time $T(n) = n^3 + 20n \space \space \text{is}\space \space Ω(n^2)$

December 10th, 2022

## if A then B & if not A then C

December 8th, 2022

## the set of all real numbers whose decimal representation contain only 0, 2, 4, 6, 8 is not countable

August 16th, 2022

## Which of the following is a counterexample for the statement

August 16th, 2022

July 23rd, 2022

## Simple ranking/rating algorithm

November 20th, 2022

## Show that the set {3, 6 , 9 , 12 , 15 ... } is countable.

November 10th, 2022

## Which of the following sets are equal?

November 10th, 2022

July 23rd, 2022

## Graphing Relations and Their Properties

August 15th, 2022

July 23rd, 2022

## How many rectangles can be observed in the grid?

August 15th, 2022

## If $A$ and $B$ are sets, and $A$ is element of $B$

August 14th, 2022

## How to define ordered pairs

October 19th, 2022

## general formula using informal inductive reasoning

October 15th, 2022

## What is the matrix and directed graph corresponding to the relation $\{(1, 1), (2, 2), (3, 3), (4, 4), (4, 3), (4, 1), (3, 2), (3, 1)\}$?

August 14th, 2022

## Find all the substrings of the string $aabaabb$

September 23rd, 2022

July 31st, 2022

## Prove that if $x+5$ is odd, then $x^2$ is even.

September 22nd, 2022

## Using generation functions solve the following difference equation

August 20th, 2022

July 26th, 2022

June 27th, 2022

August 1st, 2022

## Express the negation of the following statements WITHOUT using the negation symbol

September 23rd, 2020