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

the american south is an example of culture region

A sentence fragment is a group of words that does not express a complete thought and is missing what? A) a subject B) a verb C) a pronoun D) Either A or B

What are the advantages of following a strict repayment schedule? Check all that apply. A. It eliminates the need for secured credit. B. It prevents additional

What kind of of dilemma does this incident represent

describe the general features of three of the vertical climate zones found in South America

can some one please help with this PLEASE

Tara heated a beaker on a hot plate. Then, she set the solution on the countertop to cool. Her lab partner, Molly, did not realize that the beaker was hot and t

Which verb form completes this sentence? Nosotros _____ a hablar espanol cuando fuimos a estudiar a Madrid .

The beginning of long musical phrases in motets is called

what is an equivalent addition expression for 3-(-3)