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Mar
3
answered How to prove the following formula is a constant?
Jan
8
answered Why is it unacceptable to say “the range is a function of the domain”?
Jan
7
answered A positive measurable and improper integrable function is integrable
Jan
7
answered Showing that if a function is $O(x^2)$, then it's also $o(x)$
Dec
31
answered Impossible events that actually happened
Dec
28
answered Prove that $|f|\leq 1$ whenever $|x|\leq 1$.
Dec
20
answered Evaluate $\lim\limits_{x\to\infty}x(\frac{\pi}{2}-\arctan(x))$ without using L'Hôpital
Dec
19
answered I would like to calculate the following limit: $\lim_ {n \to \infty} {\left( {n\cdot \sin{\frac{1}{n}}} \right)^{n^2}}$
Dec
7
answered If $f''+f'=f$ then $f\equiv 0$
Dec
5
answered How many ways can this be done?
Dec
4
answered Uniform convergence (similar to Dini's theorem, but different)
Nov
25
answered What is the probability that he counts head more that tails when tosses a coin 6 times
Nov
24
answered Test the convergence of the integral $\int_{-\infty}^{\infty}\frac{e^{-x}}{1+x^2}.$
Nov
22
answered Supremum of a function
Nov
21
answered Meaning of $C^k$ in Taylor's expansion
Nov
18
answered Evaluate $\lim_{x \to 0} \left(\frac{ \sin x }{x} \right)^{\frac{1}{x^2}}$
Nov
17
answered How do you find the area of the shaded (gray) region of the square not getting overlapped by the circle or triangle
Nov
17
answered Which is the correct way to analyse balls drawn from an urn (with replacement)
Nov
11
answered Is $\gamma$ homotopic to $g\circ\gamma$?
Nov
10
asked Is there a formula which gives the solutions of a general fifth grade equation by using trascendental functions?