3,667 reputation
1531
bio website sharif.academia.edu/…
location Tehran, Iran
age 24
visits member for 2 years, 11 months
seen 4 hours ago

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Mar
21
reviewed Approve suggested edit on Evaluate the integral. $\int x^2 \log(4x) dx$
Mar
20
reviewed Approve suggested edit on Is a subgroup of a topological group a topological group?
Mar
19
reviewed Approve suggested edit on Probability choosing more than one ball in a random box
Mar
19
awarded  Fanatic
Mar
17
reviewed Approve suggested edit on Assume $X_i$ are iid with mean $o$ and variance $o^2$ and $E(x_i^3)=0$
Mar
17
reviewed Approve suggested edit on Let's Graph in Four Dimensions
Mar
17
reviewed Approve suggested edit on Derivative of $ h(t)= \sin (\cos^{-1}t$)?
Mar
16
reviewed Approve suggested edit on I am unable to prove this Trigonometric Identity
Mar
15
reviewed Approve suggested edit on Find the limit involving a Riemann sum.
Mar
14
reviewed Approve suggested edit on A basic question on integration
Mar
14
reviewed Reject suggested edit on Derivative of a definite integral (FTIC)
Mar
12
reviewed Approve suggested edit on Congruences or logs
Mar
11
reviewed Approve suggested edit on Subsets - Problem with understanding
Mar
11
comment Let G be a group and let H,K be subgroups of G where |H|=12 and |K|=5. Then the intersection of H and K = {e}.
$o(x)=1$ if and only if $x=e$. Some books use e instead of 1. Note that $e$ is the identity element.
Mar
11
revised Let G be a group and let H,K be subgroups of G where |H|=12 and |K|=5. Then the intersection of H and K = {e}.
edited tags
Mar
11
comment Let G be a group and let H,K be subgroups of G where |H|=12 and |K|=5. Then the intersection of H and K = {e}.
By LaGrange's theorem, we have $|H\cap K|\,|\,|H|$.
Mar
11
answered Let G be a group and let H,K be subgroups of G where |H|=12 and |K|=5. Then the intersection of H and K = {e}.
Mar
10
reviewed Approve suggested edit on In general is it true that $||v-u||= ||u-v||$? Thanks!
Mar
10
revised Prove that H is a subgroup of G
edited tags
Mar
10
answered Prove that H is a subgroup of G