Recent content by Haldhad

I didn't say you did, but it is good advertising. For example if I have an idea and I want to sell it to a business, the question will arise as to what testing or review it has undergone, if I say in my shed with a bicycle tire and a 3 amp battery, they will laugh in my face. If I cite a journal...

Once you publish you have some sort of copyright law on your side that protects you or your ideas from being exploited for commercial gain by unscrupulous plagiarists. Presuming it is in an accredited journal and not the Psychics Journal of Woo for Woo Artists or some such bs journal. Plus its...

Degrees of freedom, solids are bound in a "lattice", liquids are not, hence it takes more energy to move a solid "lattice" of bonded atoms than freely motive particles, hence the energy may be the same and the overall/average energy consistent with a liquid but the kinetic/movement energy may...

I thought you might find this interesting. I'm not sure it fundamentally changes any interpretation issues but it does have some intriguing possibilities both for future experiments and the philosophical issues, particularly those who favour particle models. Full article here...

The longest word in the English language is time. Ok physics jokes aside, as said it depends what you mean by word, a chemical term is a word but is it a word as you understand the term. Antidisestablishmentarianism was once listed as the longest word although falsely. It means against the...

Well einstein was deemed remedial by his parents at age 8 because he couldn't converse very well with other people, they considered sending him to a special school. There's a difference between abilities that actually help and those that hinder. Although the fine line is exceptionally slim and...

No that was my point, the idea that it is is fringe. But I can link you to some scientists claims that it is a myth but not for the reasons you might imagine. Which links nicely with the post above. No matter the level of education or age some people clearly are crackpots. Correct diagnosis is...

And sadly all levels of education from the high school student to the post doctorate. Still at least there's peer review. :)

I don't disagree but you are missing my point, if you are saying that people who have comprehension issues are not disabled, that is just wrong, some people can't even see writing in the correct order without special glasses. So very wrong. If we're going to bar people on the basis of...

I've been told that using the term average is wrong by some people. I know not why, since obviously this is a correct definition. Temperature is not something that reflects an individual event in a medium, it is something that is attributed to the medium over all. I quite agree that is a good...

It's not so much putting it in anything, it just isn't the shortest question in the world. It would be a little annoying having to read 10 steps to get to the end in ASCII, I know I wouldn't want to. Anyhoo thanks; can do it in latex now, I'll give it another try. Clearly I messed up on...

Why?

The time for editing had past or I would of edited. It won't let me type in latex without posting it in some strange code format for some bizarre reason. And showing the working without it will be needlessly confusing, long winded and ultimately pointless since its clear I've gone wrong...

Glad I chose a small fish now. :-p Thanks guys.

It's supposed to be x^2 in the original (typo my bad) and the actual question is not that important nor is the derivation before simplification as I only want to know how they simplified from the last step to the end step as given. Which is why I put this question in pre calculus. I also forgot...