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seen Dec 9 at 11:35

Dec
9
awarded  Caucus
Dec
9
accepted How to evaluate the sum
Dec
5
asked How to evaluate the sum
Dec
5
comment Is it possible to get $\eta_d(G_1\times G_2)$ in terms of $\eta_d(G_1)$ and $\eta_d(G_2)$ where $G_1, G_2$ are groups?
bof thank you. I have got my answer.
Dec
4
comment Is it possible to get $\eta_d(G_1\times G_2)$ in terms of $\eta_d(G_1)$ and $\eta_d(G_2)$ where $G_1, G_2$ are groups?
ummm....to be precise , no. I didn't think that. Just considered as any natural number/ positive integer. I want to know the result in general.
Dec
4
suggested rejected edit on If $g$ is bounded and satisfies $g(x) = f(x)$, then $g$ is integrable and $\int_{a}^{b} g(x)dx = \int_{a}^{b} f(x)dx$.
Dec
4
asked Is it possible to get $\eta_d(G_1\times G_2)$ in terms of $\eta_d(G_1)$ and $\eta_d(G_2)$ where $G_1, G_2$ are groups?
Dec
3
revised If $G$ has exactly $8$ elements of order $3$ ; how many subgroups of order $3$ does $G$ have ?
$\phi()$, EUler's totient function
Dec
3
suggested approved edit on If $G$ has exactly $8$ elements of order $3$ ; how many subgroups of order $3$ does $G$ have ?
Dec
1
comment System with two quadratic equations
Sir, you are right. I did a mistake in my calculation. Thank you so much for this.
Nov
28
comment System with two quadratic equations
Dear Sir, as you mentioned about the conditions, what about this: From (I), $\frac{cd-be}{ad-e}=\frac{ad-e}{ab-c}$ ?
Nov
27
asked System with two quadratic equations
Nov
26
comment Prove the inequality: $\frac{a}{c+a-b}+\frac{b}{a+b-c}+\frac{c}{b+c-a}\ge{3}$
Thats more than enough
Nov
26
comment Prove the inequality: $\frac{a}{c+a-b}+\frac{b}{a+b-c}+\frac{c}{b+c-a}\ge{3}$
How about using AM $\geq HM$ on the positive reals $(a+b-c)^{-1}, (b+c-a)^{-1},(c+a-b)^{-1}$ ? Will it work ?
Nov
21
comment A mathematical statement is logically equivalent to a related statement
contrapositive seems right
Nov
21
comment How to prove this statement: $\binom{r}{r}+\binom{r+1}{r}+\cdots+\binom{n}{r}=\binom{n+1}{r+1}$
@Paul Can you please clear my doubt how $C^r_{r+1}$ as binomial coefficient is well defined ? I mean when we write $C^n_r$, we usually mean that $0\leq r\leq n$, am I right?
Nov
19
comment To find the determinant in this question
@godonichia you are most welcome.
Nov
19
comment To find the determinant in this question
Rather I write this: If $A$ is square matrix of order $n\times n$ then for any scalar $c$ we shall have $|cA|=c^n |A|$.
Nov
19
answered To find the determinant in this question
Nov
14
comment Can we say characteristic polynomial of the matrix $A+B$ is same as sum of characteristic polynomials of $A$ and $B$?
I think the title of this question was not completely correct, but if anyone finds any suitable title, my request, please edit