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comment Question about relation between Series and Sequences
The limit of the series can not be $0$...
Jun
25
comment How to write $n!=a^{\alpha_0}(a+1)^{\alpha_1}(a+2)^{\alpha_2}\cdots(a+r)^{\alpha_r}$?
@Anjan3: Then you should change "Now I am willing to write $n$ as..." to "$n!$ as..."
Jun
25
comment How to write $n!=a^{\alpha_0}(a+1)^{\alpha_1}(a+2)^{\alpha_2}\cdots(a+r)^{\alpha_r}$?
Is $0\in\mathbb{N}$? If yes, do you allow $\alpha=0$? For example, how would you present $15$ in this form? $15=3^1\cdot4^0\cdot5^1$?
Jun
24
answered Find $x+y+z$ from the equation
Jun
24
answered How many ways are there to divide $5$ books amongst $3$ people?
Jun
24
comment How many ways are there to divide $5$ books amongst $3$ people?
@Goran: Start from here: en.wikipedia.org/wiki/Stars_and_bars_(combinatorics)
Jun
24
comment How many ways are there to divide $5$ books amongst $3$ people?
@Goran: Do you know in how many ways can you throw $n$ balls into $k$ (distinct) bins?
Jun
24
comment How many ways are there to divide $5$ books amongst $3$ people?
@Goran: Welcome to Math.SE! In order to get the best possible answers for your question please provide some background as to where you encountered the problem and what your thoughts on it are. This site is intended for learning and not for solving homework questions...
Jun
23
revised Fundamental group of a modified annulus
added 13 characters in body
Jun
11
awarded  Nice Answer
Apr
20
revised Value of $x$ when $5 + \log x = \log \left(x^6\right)$
added 13 characters in body; edited title
Mar
30
revised $(\delta,\varepsilon)$ Proof of Limit
added 16 characters in body; edited title
Mar
20
comment Evaluate $\int \frac{1}{x^3+3x+1}dx$
Which is what exactly? When you learn\teach Calculus 1, do you talk about $\log(x-2i+3)$?
Mar
20
comment Evaluate $\int \frac{1}{x^3+3x+1}dx$
Indeed it is - but you need to know complex integration for that
Mar
20
comment Evaluate $\int \frac{1}{x^3+3x+1}dx$
Only one of them is real...
Mar
20
answered Evaluate $\int \frac{1}{x^3+3x+1}dx$
Mar
20
comment Evaluate $\int \frac{1}{x^3+3x+1}dx$
@Power: Are you sure that it is $x^3$ in the denumerator?
Feb
24
answered If a normal subgroup of a symmetric group contains a transposition. Prove that the normal subgroup is the entire symmetric group.
Feb
22
answered Why $(f(-x)) ^\prime=-f ^ \prime(-x)$?
Feb
12
awarded  Yearling