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

What effect does the author's use of the first person point of view have on the reader? A. It makes the reader question the integrity of the author. B. It hel

How do you do u divide 3 into 0.294

The histograms show the test results from two different tests in Mrs. Lofton's class. How many students are in Mrs. Lofton's class?

Why did policymakers in the Johnson administration want to continue U.S. involvement in Vietnam? They wanted to unify North and South Vietnam as one nation. The

Cloning _____. can only be done with simple cells like bacteria creates offspring with a combination of traits from two organisms results in offspring that is g

The _____was designed to make it easier for people to own a home.

Which of the following is not the name of an air mass

What is the surface area of this prism? A. 120 cm2 B. 122 cm2 C. 240 cm2 D. 184 cm2

The value of Maggie's car decreased 30% since last year,when she bought it. If the car is now worth $22,000.00 ,how much was the car worth when she bought it?

Blood moving through veins can only flow in one direction because of the vein's _____. valves pressure contraction restrictions