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 Jan 5 revised De Moivre Theorem added 1 character in body Jan 5 revised Better to memorize logarithm rules? And how? deleted 3 characters in body Jan 5 revised Better to memorize logarithm rules? And how? added 31 characters in body Jan 5 answered Differentiating $0.5\sin⁡(2t-\pi/2)$ Jan 5 comment How to differentiate both sides with an independent variable if one doesn't have a formula? @Anonymous you can fit some sort of a curve to the data, or interpolate it with synthetic curves (like splines), and then apply the formulae above. Jan 5 answered Sophie Germain's Theorem Jan 5 answered Simplify the following expression containing trigonometric functions Jan 5 comment How to differentiate both sides with an independent variable if one doesn't have a formula? @Anonymous see update Jan 5 revised How to differentiate both sides with an independent variable if one doesn't have a formula? added 253 characters in body Jan 5 answered A system of two first order PDEs Jan 5 revised Finding c with a density function defined inside a 3-d object edited tags; edited tags Jan 5 answered Finding c with a density function defined inside a 3-d object Jan 5 answered How to differentiate both sides with an independent variable if one doesn't have a formula? Jan 5 comment For what values of $t$(if any) do $(2, 1, 1), (2, t, 2t)$ span $\mathbb R^3$ $\vec{V} \times \vec{W}$ is clever, +1 Jan 5 revised Poisson distribution transformation method added 56 characters in body Jan 4 revised Intersection of subsets representing flipping a (countably) infinite number of coins edited tags Jan 4 answered What is the span of $(1, 1, 1), (0, -1, 1), (0, 0, -1) \in \mathbb R^3$? Jan 1 answered If the second derivative of a function is zero, why is the second derivative test inconclusive? Dec 29 comment Correlation between $(X+Y)^2$ and $X$ Just expand $\mathbb{E}[(X+Y)^4]$, everything is uniform, should be easy to do Dec 29 revised Define convergence of series (criterion of Weierstrass) added 40 characters in body