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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