# mirgee

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# 21 Questions

 5 Intersection of lines on a plane 3 $\lim_{n\to\infty}\sum_{i=1}^{4n-1}(\frac{i}{n})^3\frac{1}{n}$ 3 Decide convergence of the series 2 Change of signs in harmonic series 2 Sum of $\sum\limits_{n=1}^\infty q^n \sin(nx)$

# 510 Reputation

 +20 What's the purpose of this formula? +5 Show elementarily that $\lim_{R\to\infty}\int_{\Gamma_1} \frac{e^{iz}}{z} = 0$ +15 Division of Compound Units +5 $\lim_{n\to\infty}\sum_{i=1}^{4n-1}(\frac{i}{n})^3\frac{1}{n}$

 3 Convergence or divergence of series where the terms include reciprocal of the natural logarithm 2 What's the purpose of this formula? 1 Non orthogonal diagonal bases of normal operators 1 Solve system of Equations 1 Finding a basis for $W_1 \cap W_2$ and $W_1 + W_2$

# 37 Tags

 5 linear-algebra × 11 1 convergence × 7 5 sequences-and-series × 9 1 real-analysis × 3 3 absolute-convergence 1 taylor-expansion × 2 2 integration 1 indefinite-integrals 2 summation 1 calculus

# 11 Accounts

 Mathematics 510 rep 113 Code Review 200 rep 7 Stack Overflow 196 rep 18 Physics 120 rep 6 Philosophy 113 rep 3