Recent content by Joseph Richard

Curious, Why facts can be falsified and not truths? I thought that the true can be falsified and not facts, why?

Hum ... So, E = mc² is a objectively true, here to the Earth is also a fact, and to another parts to the universe is not a objectively true, in conditions that there be more advanced civilizations than us? I ask dorries to people here if I am very ignorant in this subject.

Yes Haurs, I messed up. Thank you for the correction.

This is not Spanish, it's Portuguese, I'm native Portuguese speaker (from Brazil).

Hum... I went to look for, and I found this, I did not go out of the still pre-calculus, now that I went to see my books and have them.

Now that I solved the question, I was on it for three days. Thank you to everyone who helped me.

x/y=y/w y²=xw (y²)²=1296 y=6 1/6 of y+y ----> 1/6 de 12 => 2 = w Replacing is 36=2x x = 18 S = {6, 6, 18, 2}

Really? I've heard that it's too basic, now that I remembered I already know, If you want to know calculus, try Apostol, but remember, you have to know all the subjects of Elementary School II and the High School.

Well, I don't know, but people here in Brazil at UFRJ uses James Stewart.

I know, in the subject of Arithmetic, in the part of ratio and proportion, sum of the means has to do about the means and extremes.

Harus, I don't know too. :cry:

I read it in Portuguese: http://brasil.elpais.com/brasil/2016/06/30/ciencia/1467281442_280683.html

Hi Sammy, I don't know if I translated wrong, but this is continuous ratio is one in which the means or the ends are the same, the party ratio and proportion Example: 9/6 = 6/4

Good night people, Is there a difference between these terms, I had this doubt when I was reading an article about Neil deGrasse Tyson on El País, Is there a difference between these terms?

Homework Statement Determine the conditions of a continuous ratio knowing that the product of the four terms is 1296 and the last term is equal to 1/6 of the sum of means. Original question (in Portuguese): Determinar as condições de uma proporção contínua sabendo que o produto dos quatro...