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Ivan Gandacov

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 6 years, 11 months
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  • Last seen Dec 30 '20 at 11:10

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6 Limit $\lim\limits_{n \to \infty} n \cdot\ln(\sqrt{n^2+2n+5}-n)$ Oct 14 '14
6 Calculate $1+(1+2)+(1+2+3)+\cdots+(1+2+3+\cdots+n)$ Oct 19 '14
6 $\lim_{{n}\to {\infty}}\frac{1^p+2^p+\cdots+n^p}{n^{p+1}}=?$ [duplicate] Jan 18 '15
6 How do I calculate: $\int \frac{dx}{3\sin^2 x+5\cos^2x}?$ Feb 21 '15
5 Solve $(4x+3)^2(2x+1)(x+1)=75$? May 6 '14
3 Solve: $(\cos x+i\sin x)(\cos 2x+i\sin 2x)(\cos 5x+i\sin 5x)={i+1\over \sqrt 2 }$ May 11 '14
3 Solve $z^4+16=0$ where $z$ is a complex number May 11 '14
3 Exercise concerning logarithms… Apr 5 '14
3 Calculate the confidence interval of parameter of exponential distribution? May 18 '15
3 When $a\to \infty$, $\sqrt{a^2+4}$ behaves as $a+\frac{2}{a}$? Oct 15 '14
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