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 Oct 24 answered How can I find the quadratic formula using calculus? Sep 28 answered How to solve $\lim _{x\to \infty \:}\left(\sqrt{x+\sqrt{1+\sqrt{x}}}-\sqrt{x}\right)$ Solved Sep 17 answered Integrate with substitution. Evaluate $\int \frac{\sin\sqrt x}{\sqrt x} \ dx$. Aug 26 answered Why $\sum_{k=0}^\infty (-1)^k \frac{(\ln 4)^k}{k!}=0.25$? 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 answered Finding the period of $f(x) = \sin 2x + \cos 3x$ Feb 26 answered Problem with evaluating the exact value of an integral Jul 1 answered If $X$ is distributed normally with mean $0$, is it correct to say $X$ and $-X$ “have the same distribution”? May 10 answered How find a example such this set condition? Apr 11 answered Minimum number of combinations Apr 8 answered Convert from base 10 to base 5 Apr 5 answered What is the probability that you will see an odd number of heads? Apr 1 answered What is the legality of the following series? Oct 23 answered Intuition behind product rule of probability Oct 22 answered Proof of Aristarchus' Inequality Oct 20 answered Are there any open mathematical puzzles? Oct 19 answered Determine $a<0$ such that $\int_a^0 f(x) dx = f(a)$ Oct 15 answered Is there a fast way to compute coefficient of some term of the product of some series'? Oct 15 answered How do I reduce this: $\frac{2}{x\ln(4)}\quad ?$ Oct 13 answered Coupon selecting problem