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May
25
comment How many three digit numbers with increasing digits can be formed from the set $\{1, 2, 3, 4, 5, 6, 7, 8\}$?
Care to explain, downvoter?
May
23
comment Finding line that divides an area into equal halves.
The error is when you factor the $\sqrt{1-k}$. More precisely, look at the $(1-k)^{3/2}$.
May
23
answered How many three digit numbers with increasing digits can be formed from the set $\{1, 2, 3, 4, 5, 6, 7, 8\}$?
May
21
awarded  Nice Answer
May
21
comment Finding the period of $f(x) = \sin 2x + \cos 3x$
Yes, that will be it
May
21
answered Finding the period of $f(x) = \sin 2x + \cos 3x$
May
21
comment what will be the value of this integral
At brilliant's, there were absolute value that you missed inside the logarithm
May
19
comment If you fold a rectangular piece of paper in half
What's the solution needing verification?
May
15
awarded  Yearling
Apr
21
revised Evaluate the integral $\int \sin(x)\cos(3x^2)dx$
added 2 characters in body
Mar
17
comment Where do summation formulas come from?
Finite calculus is one way of computing sums cs.purdue.edu/homes/dgleich/publications/…
Feb
26
comment Investigate the convergence of $\int_0^\infty (-1)^\left[{x^2}\right] \, dx$
@AlonAlon because $[x^2]$ is an integer.
Feb
26
answered Problem with evaluating the exact value of an integral
Dec
20
awarded  Constituent
Dec
8
awarded  Caucus
Nov
18
comment Are the equations $2x - 2y = 11, x = y - 2$ unsolvable?
This is most likely what was expected from the teacher
Oct
5
comment What is meant by“…on se ramène par régularisation…”?
Careful, "Dénombrable à l'infini" does not mean countably infinite. It is rather linked with a locally compact spaces. I think it means that the space can be written has a countabble compacts family
Oct
5
reviewed Looks OK Let $n $ be an integer. Prove that if $ 2|n$ and $3|n$, then $6|n$
Oct
5
reviewed Looks OK Let $n $ be an integer. Prove that if $ 2|n$ and $3|n$, then $6|n$
Oct
5
reviewed Looks OK Summation of polynomial expression