jointheirs5 jointheirs5

15-01-2017
Mathematics

contestada

Show that the system of rational expressions is closed under addition, or give an example showing the contrary.

Respuesta :

rockinrazz27 rockinrazz27

15-01-2017

Let p/q, r/s be elements of Q , the set of rational numbers, where q and s are non zero.We need to show that the sum is also a rational number.p/q + r/s = (p*s + q*r ) /(q*s)
Since q and s are non zero, the sum is a rational number.

Answer Link

Otras preguntas

Choose all that apply. The earliest civilizations developed in the river valleys of the Nile River the Yellow River the Amazon River the Tigris and Euphrates Ri

When a European power placed one of its officials in a foreign government to remotely control that government a ___________ was created.

If m∠A = 87° and m∠B = 32°, find m∠1.

what is a pure chemical substance with its own characteristic, atomic structure, and chemical properties?

Can someone please help

suppose that samples of size n 25 are selected at random from a normal population with mean 100 and standard deviation of 10. What is the probability that the s

What is the standard form of five and three hundred fifty two thousandths?

You start at (-4, -5). You move left 1 unit and right 6 units. Where do you end?

If a solution has a higher hydrogen ion (H+) concentration than hydroxide ion (OH-) concentration it is A) Acidic B) Basic C) Neutral D) Buffer

what are two ways that protists can reproduce asexually.