8 Double integral bounds of integration polar change of coordinate 6 Solve equation: $\log_2 \left(1+ \frac{1}{a}\right) + \log_2 \left(1 +\frac{1}{b}\right)+ \log_2 \left(1 + \frac{1}{c}\right) = 2$ 6 Need help to solving the logarithm equation of $\frac{1}{\log_{2x-1}{(x)}} + \frac {1}{\log_{x+6}{(x)}}=1+\frac{1}{\log_{x+10}{(x)}}$ 5 Evaluating $\lim_{x\to 0}\frac{\ln(1+x)-\ln(1-x)}{\arctan(1+x)-\arctan(1-x)}$ without differentiation 4 How to find $\lim_{(x,y)\to (0,0)} \frac{\sin(x-y)}{x+y}$?

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 5 Are Disjoint Open Subsets Contained in Disjoint Open Sets in a General Topological Space? 4 Convergent Sequences of Extremally Disconnected Hausdorff Spaces 4 How to Motivate Open-Cover Formulation of Compactness in a Metric Space? 3 Introductory book on (only) Topological Manifolds? 3 Existence of Hausdorff space comprised of disjoint dense subsets

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 183 Why can't differentiability be generalized as nicely as continuity? 3 Will this series of functions converge? 1 Essentially nonEuclidean space?