Recent content by Yawzheek

My apologies, sir. I deleted it because I assumed the photograph, coupled with my attempt to solve the question and explanation would be sufficient. Again, I'm very sorry for that.

It's not a homework help question, but it's somewhat related, and doesn't have a better sub-forum: how do you guys/gals remember all the intricacies of mathematics so well that you can help people like me? I ask this because, like many people, I've done it all before, but when I pour over the...

Thank you very much, Dr. Courtney!

Oh! I had a TI-Nspire CAS (not the CX color model) and liked it very much! Sorry that I don't have experience with the Casio, but if I can tell you something: Be VERY careful with the TI-Nspire CAS models! While it's a great calculator, the fact that it has a computer algebraic system (CAS)...

I guess I should have done this earlier, but late is better than never, right? I joined, mostly because I'm interested in pursuing science and mathematics further than what I learned in college. I went to an EXTREMELY poor community college, but I had an amazing physics instructor that got me...

Oh dear God, Nathanael, I think I see what I did now, thank you! Unbelievable! I'm such an idiot... (w+4k)/w ---> (-k+4k)/-k ---> 3k/-k = -3 I replaced the k in the second term of the numerator with w, and then replaced THAT with -k. I guess it would have been correct, had the...

Hey all! I'm just going back through an old calculus book I have, and while attempting one of the odd numbered problems (because I can check my answers, obviously) I came across a problem and I'm not entirely sure if I've made a serious mistake and completely goofed, or if my book is incorrect...

And you are indeed correct on both areas, and I thank you! The reason I created the post was because I've always wanted to get further into mathematics so that I could pursue the next level of physics, beyond algebraic. Life happens, of course, and I suspect we all understand that. The OTHER...

https://www.amazon.com/dp/0321717651/?tag=pfamazon01-20 I used that. Afterwards I gave it to a friend learning Algebra I, because I thought my notes in it might help him. He never actually read it...

And you're absolutely correct! I worked my way through the practice areas (review), but then I ran into problems such as: x^2/3 - y^2/3 = 1 And immediately I hit a standstill. That's why I ask for help in reviewing necessities in algebra BEFORE I go further, because if I see something like...

Incidentally, I possesses two calculus books (ISBN-13 978-0-33611-8) and (ISBN: 0-618-14180-4) already. Perhaps you didn't read my original post, but I never studied past precalculus, and want a better review of the algebraic laws before I tackle them, as a person that hadn't studied mathematics...

Thank you, friend! Indeed, my trigonometric abilities were fine, so long as I didn't need to actually understand them. Ha! Thank you, friend! I did do trigonometry before (as part of the precalculus curriculum,) and remembered SOME of it - that namely being SOHCAHTOA, and how to find angles...

In fact, it's possible I may compress all of this into a sentences: I've neglected my math studies until precalculus, but I want to learn calculus for calculus based physics - what is essential to review?

It's not that I'm a total beginner in mathematics, so please allow me to explain: I've worked through everything UNTIL Calculus, quite hard at that, when I was in college. I took a series of general physics courses, passed with no problem, and everything was good, EXCEPT... Years ago, I...