I'm a little confused as to how $(2n)!/(2n+2)!$ looks when written out. Basically I'm trying to visualise it so that I know how to cancel this and like terms in future.

2015年11月24日 · I found: (2n+2) (2n+1) Remembering that we can write: n! =n* (n-1)! we have (applying twice the above property to the numerator): ( (2n+2)!)/ ( (2n)!) = ( (2n+2) (2n ...

2017年12月9日 · There exist two electron spins possible for a single electron: m_s = pm1/2. From the Pauli Exclusion Principle, there can only be two electrons in the same orbital, without sharing all four atomic quantum numbers. Therefore, the maximum number of electrons per energy level is color (blue) (2n^2).

2015年9月15日 · There are two possibilities for what your spoken equivalent corresponds to: 2n 2 would be the most likely because the exponent operation takes precedence over the multiplication (you'd square n before multiplying by 2), so that's 2 · n · n (2n) 2 would be spoken as "2 n quantity squared" where the quantity implies that 2n is in parentheses.

This number comes from 2(1 + 3 + … + 2n − 1) = 2n2 2 (1 + 3 + … + 2 n − 1) = 2 n 2. Possible spin states * number of orbital states for a shell with a dash of Pauli's exclusion principle.

It's been a long time since high school, and I guess I forgot my rules of exponents. I did a web search for this rule but I could not find a rule that helps me explain this case: $ 2^n + 2^n = 2^...

2015年1月27日 · Which one is right? The exercise is to show that

2015年12月24日 · Alkanes: CnH 2n+2; Alkene: CnH 2n; Alkyne: CnH 2n−2; Alkyl residue: CnH 2n+1; Aldehyde/ketone: CnH 2nO; Cycloalkane: CnH 2n A fully saturated hydrocarbon, an alkane, has general formula CnH 2n+2: n = 1, methane; n = 2, ethane; n = 3, propane. BY reason of their formula alkanes are said to HAVE NO DEGREES of UNSATURATION. Where the formula is …

2017年2月8日 · How do you simplify the factorial expression (2n − 1)! (2n + 1)!?

2015年12月10日 · While there isn't a simplification of (2n)! n!, there are other ways of expressing it. For example