Sean Haugh
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### Questions (4)

 3 Proving a certain inequality in $\mathbb{R}^n$ 2 Prove that $\sum_{n=1}^\infty \frac{z^n}{z^{2n}+1}$ converges when $\|z\|\neq 1$ 1 Flow lines of a gradient field 0 Maximize $f(\mathbf{x})={1 \over 2}(A \mathbf{x}) \cdot \mathbf{x}$

### Reputation (85)

 +10 limit ${\lim_{x \to 49} \frac{\sqrt{x}-7}{x-49} }.$ +10 Prove that $\sum_{n=1}^\infty \frac{z^n}{z^{2n}+1}$ converges when $\|z\|\neq 1$ +5 Flow lines of a gradient field +10 Find the rate of change $dy/dx$ where $x= x_0$

 4 limit ${\lim_{x \to 49} \frac{\sqrt{x}-7}{x-49} }.$ 1 Find the rate of change $dy/dx$ where $x= x_0$

### Tags (5)

 4 limits 0 linear-algebra 1 calculus 0 complex-analysis 0 multivariable-calculus × 3

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 Mathematics 85 rep 6 Electrical Engineering 8 rep 2 Web Applications 6 rep 1 Stack Overflow 1 rep Mathematica 1 rep