Recent content by qntty

IARC says that cell phone radiation is "possibly carcinogenic to humans" Maybe the hysteria over cell phones and brain cancer wasn't as ridiculous as it seemed. The http://www.iarc.fr/en/media-centre/pr/2011/pdfs/pr208_E.pdf" has done a review of the literature and says that "radiofrequency...

wow I was really surprised considering that I guessed on most of the knowledge-based questions (name-that-scientist, periodic table, and programming language)

Well I doubt that anyone will be able to tell you what career you'd enjoy more. You should probably start by deciding what you want to major in.

re(z) = |z|cos(x) im(z) = |z|sin(x) use trig identities

https://www.physicsforums.com/showthread.php?t=64966" post should help.

maybe you'd be interested in http://www.dpmms.cam.ac.uk/~wtg10/decimals.html" article on the topic of thinking about numbers as infinite decimals

This is off topic but "da Vinci" wasn't Leonardo's last name, da Vinci is added to the end of his name because he was from the Italian town of Vinci. Calling Leonardo da Vinci by "da Vinci" is like calling Archimedes of Syracuse by "of Syracuse."

Have you tried asking your professor/TA for advice on how to prepare for the exams? What kind of questions did you miss on the first exam? Did you waste time studying things that you didn't need to study? How can you change your studying to prevent this next time? Additionally there are...

could you make an option to disable it? perhaps it could be a gold-member feature.

I can understand if you don't think that a book will change you, but why do you choose not to read at all? Many "classic" books are written much better than alternative forms of entertainment (television shows, movies, video games). Whereas a television show is written in a few days by a team of...

First, have you considered the possibility that you could burn-out after a few semesters? Second, are you aware that your physics education is very out-of-sync with your math education? You're taking physics I before you even begin calculus and two quantum mechanics courses before taking linear...

If the base case fails or if p(n) doesn't imply p(n+1)

\sin{0}=\sin{\pi}=0 but \pi \not= 0. A function can only map one output to a given input, so we have to specify which solution we want when we say Arcsin(0). The solutions which are typically used are the ones between -\pi/2 and \pi/2

let t=2x. can you solve sin(t) = sqrt(3)/2

you can't multiply an expression by something to simplify it unless you are multiplying by 1. Try factoring and substituting in identities just like you tryed the first time but without multiplying by -1.