Mathematics
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Lazy
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All Questions Answers
Score Newest
answer
9
Continuous function satisfying $ f\left(\dfrac{x+t}{2}\right) \le f(x) + f(t)$ inequality must be $0$
Oct 26, 2022
answer
6
Two equivalent definitions of the Cantor function
Sep 28, 2021
answer
6
Number of matrices $A$ in $M_2(\mathbf{Z}/3\mathbf{Z})$ satisfying $A^{50}=I.$
Sep 4, 2021
answer
6
Sum of normal random variables being not normal
Oct 11, 2021
answer
5
Let $(E,⋅)$ be an associative algebraic structure. Prove that if $\forall a,b\in E$ you have $ab^2a=b$ then $|E|=1$
Sep 9, 2021
answer
5
Do distance-preserving maps from $\mathbb R^2 \rightarrow \mathbb R$ exist?
Oct 11, 2021
answer
4
$\int(1/5)e^{-x/5}\,dx$ can someone help me integrate this? I keep getting negative and it should be positive
Sep 28, 2021
answer
4
Find $f(3)$ if $f(f(x))=x^{2}+2$
Nov 8, 2021
answer
4
$\infty! = \sqrt{2\pi}$?
Nov 11, 2021
answer
4
What does $F(\varphi)(z)$ mean?
Nov 24, 2021
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28
C Trumpet in Beethoven's 5th symphony
21
How to dare to whistle or to hum in public?
20
Is a teacher necessary?
19
Is there a notation for borrowing a beat from the next measure?
19
What would've given more accurate consonant ratios than 12?

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