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Mathematics
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Abezhiko
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22
Can the differential be unitless while the variable have an unit in integration?
Jul 5
14
Is the variance of the mean of a set of possibly dependent random variables less than the average of their respective variances?
Jul 7
10
Why is it that in some problems that involve systems of equations, solving for one unknown value, also yields the other in the second solution?
Apr 1
10
Challenging integration
Nov 19, 2023
10
Prove the closed form of $\int_0^T \exp\left(\frac{ia}{T-\tau}+\frac{ib}{\tau}\right)\frac{d\tau}{\left[\sqrt{(T-\tau)\tau}\right]^3}$.
Jul 3
10
Is there a closed form for the linear operator $T$ such that $T(x^n) =f(n)x^{n-1}$?
Mar 28
8
$\sum_{{k = 0}}^{n}(-1)^k\binom{n}{k} {A}^{k}{B}^{n - k} = 0 $ implies $A=B$?
Jul 8
6
Is Integration by part always true?
Dec 28, 2022
6
Show $\root{-e}\of{e}<\ln2$ without a calculator
Feb 21
6
Question connected to triangular numbers
Nov 19, 2023
Top network posts
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11
Why this definition of the trace?
5
Finding the wavefunction of coherent state in 2D oscillator