Recent content by Tim67

It just doesn't factor easily, and generally in this class the problems have been computationally simple once you know the right approach to take, so that's making me think it can't be right. I mean, I'd want to factor it so I get a product of (a^x -1)(a^y + 1) ... (a^z +1) etc so that I can...

Homework Statement Prove that if gcd(a, 133) = 1, then 133 divides (a^18 - 1). The Attempt at a Solution This is an old homework question as I'm going over the homeworks to review for the test, but can't seem to get this right. Which is annoying because I remember I did it fine back in the...

You're right, I somehow got it in my mind that they could only arrive on the minute even though that was never stated! Thanks.

Question: I saw this on a blog, with the solution, so I'm not really asking what the answer is or how to get there, but I'm just wondering what's wrong with my reasoning, which gets me close to, but not at, the right answer: Think of a number line: 1, 2, 3, ... 120, representing all minutes...

So just had this question as extra credit on a final: Let D be an integral domain, and suppose f is a non-constant map from D to the non-negative integers, with f(xy) = f(x)f(y). Show that if a has an inverse in D, f(a) = 1. Couldn't figure it out in time. I was thinking the way to go...

I've just started trying to learn calculus via self-study; I bought a textbook and am using some stuff online for further explanation/practice questions, and if no one minds, I though I might try to use this thread to look for help/advice when I come to a problem I don't understand. Right now...

So, I hated math in high school, and thus did very poorly in it when I even went at all. Lately, though, I've been reading up more on it and doing some on my own, and find I quite like it and find it very interesting, it was just taught very poorly, also I'm in my secondish semester of college...

Socialist policy (minimum wage, the empowerment of labor unions, etc.) caused that production to be more efficiently distributed, which is what led to the higher standard of living. In the Gilded Age, a comparative free-market economic era, people were literally willing to die to form labor...

That standard of living exists because of socialism. It was industrial action, organized and influenced by socialism, which forced the ruling classes to capitulate to workers and institute the quasi-socialist reforms and social benefits which led to that standard of living. Marxism, being the...