3,877 reputation
1833
bio website sharif.academia.edu/…
location Tehran, Iran
age 25
visits member for 3 years, 3 months
seen 10 hours ago

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Jul
29
comment Why $ (1- \sin \alpha + \cos \alpha)^2 = 2 (1 - \sin \alpha)(1+ \cos \alpha)$?
It is a common factorization. where is it exactly your problem?
Jul
16
reviewed Approve suggested edit on How to calculate gradient of $x^TAx$
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Jun
18
comment Question on Infinite Abelian Group
if G is countable, then I can give you a solution. But I do not see for uncountable group.
Jun
7
reviewed Reject suggested edit on Why is this subspectrum closed
Jun
1
reviewed Reject suggested edit on linear transformation $\Bbb R^3 \to \Bbb R^2$
May
23
reviewed Approve suggested edit on Differentiation problem - airplane/observer question
May
22
reviewed Approve suggested edit on Can anyone help me with these double Integrals using mathematica
May
22
reviewed Approve suggested edit on What is the number of ways of expressing $120$ as a difference of two perfect squares?
May
19
reviewed Approve suggested edit on Factorizing degree four polynomial
May
12
awarded  Yearling
May
6
reviewed Approve suggested edit on When the upper sum $U[f;P]$ equals the lower sum $L[f;P]$ for a measurable partition $P$
May
5
reviewed Reject suggested edit on Normal of a plane- converting parametric equation to general equation
May
5
reviewed Approve suggested edit on integral of $\frac{(1+x^{1/2})^9}{ x^{1/2}}$
Apr
30
reviewed Reject suggested edit on Prove convergence and find the value of the limit of the sequence
Apr
29
reviewed Approve suggested edit on What will be the solution to: $2^{\cos x}=|x| $Find $x$.
Apr
27
reviewed Reject suggested edit on Proof of Darboux's theorem
Apr
25
comment find $K$ such that $K/Z(K)=G$
@user108209 it is not hard to see that $[h,g]\in Z(K)$ and for next line, use the identity $[x,yz]=[x,z][x,y]^z$.
Apr
25
reviewed Approve suggested edit on Is the Fourier Series correct?