Recent content by Cha0t1c

But a and b are strictly greater than 1 for all a and b since the domain is ] 1, +inf [. Doesn't it free us from this situation since b + 1 will always be greater than 0?

(a+1)^2 = (b+1)^2, How did I not see that?!

Hello, Let f: ]1, +inf[ → ]0, +inf[ be defined by f(x)=x^2 +2x +1. I am trying to prove f is injective. Let a,b be in ]1, +inf[ and suppose f(a) = f(b). Then, a^2 + 2a + 1 = b^2 + 2b + 1. How do I solve this equation such that I end up with a = b? Solution: (a + 1) ^2 = (b + 1)^2...

Thanks for the answer. Yeah, it seems like the best way to become better at this is to practice until I develop an intuition for such problems. I also have an additional question, should the orders of o(x^n) be all equal? Let's say I write the expansion of e^x to order of 2 and cosx to order of...

I am having a problem finding the right order above and below to find the finite expansion of a fraction of usual functions assembled in complicated ways. For instance, a question asked to find the limit as x approaches 0 for the following function I know that to solve it we must first find...

Hello, I am a computer science major and Ex-Biology grad student, my knowledge in physics is humble, but I got a little curious when my professor derived the expressions of moment of inertia for different objects. The moment of Inertia of a thin disk is 1/2MR2, but it is the same as the moment...

I am active on Quora and on Reddit. On Quora, it is usually easier to guess the rules, or in other words you can't be impolite because most people there have avatars and credentials, however Reddit is the complete opposite, I remember calling someone sir once and they told me to never do it. So...

Of course I'll choose the first, and I indeed find PhysicsForums to be a place where I find high quality answers to my questions...A good example is my first post here on this forum, people were helpful and the answers were respectful. I would like to apologise for any misunderstandings that...

Phytotherapy is not a replacement for medicine. However, some herbs have been proved to exert certain therapeutic effects because of phytochemicals found in them. Anise, when boiled, releases a class of organic compounds known as Lignin-Carbohydrate complexes and these complexes have been found...

Usually when posting online people tend to be more casual when addressing each other...I am used to it this way

I think such posts should be reviewed by people who specialize in Biological sciences so misunderstandings never occur.

Well bro, you guys misunderstood my question...This is a topic on phytotherapy and it is a legitimate field in biological sciences. I was taught about those stuff in school and my question was about it.

This is only my second day here and I've already encountered a couple of trolls...Are there generally many trolls on the site or was it a coincidence? I certainly hope it is the latter...I like physics forums and I don't want it to be corrupted by trolls!

I didn't say anywhere in my post that other people are not doing the same things that I do. However, not all people do these things, and that's the difference between brilliant engineers and average engineers... I don't know man, but I think there's something wrong with your numbers...

Anise extracts contain Lignin-Carbohydrate complexes (LCs), which have been found to have anti-viral effects according to this article (DOI: 10.1271/bbb.100645 ). However, from what I understood by going quickly through the article, the scientists applied the extract directly onto the cell...