underscoreAna underscoreAna

12-11-2021
Mathematics

contestada

Prove: The square of an even number is even

Respuesta :

ItzCutiePanda ItzCutiePanda

12-11-2021

Squares of even numbers are even, and are divisible by 4, since (2n)2 = 4n2. Squares of odd numbers are odd, and are congruent to 1 modulo 8, since (2n + 1)2 = 4n(n + 1) + 1, and n(n + 1) is always even.

Answer Link

Otras preguntas

A bus travels 5 kilometers in 10 minutes. A car travels 9 kilometers in 20 minutes. Which vehicle travels the fastest?

which cloud computing category allows a company to quickly provision additional disk space

NS Imagine an alien spaceship and a human-controlled ship moving directly toward each other. An observer on Earth measures the both of their speeds as 0.710c wi

Why did some Mayans tie boards to their children's heads?

Question 20 of 20 Planets A and B have the same size, mass, and direction of travel, but planet A is traveling through space at half the speed of planet B. Whic

You randomly survey students about participating in their class’s yearly fundraiser. You display the two categories of data in the two-way table.

Sales In Russia the average consumer drank two servings of Coca-Cola® in 1993. This amount appeared to be increasing exponentially with a doubling time of 2

Which classification best describes figure ABCD below?

Mosaics are __________________

if cells of the sa node did not function, what would happen to the heart?