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 Apr 8 revised Can a change of variable result in the evaluation of an integral in terms of elementary functions, whereas before the c.o.v. this was not possible? spelling mistake Apr 8 revised Integration demonstration on my Calculus exam Updated Latex - please check this still states what you originally meant. Mar 21 revised Can a change of variable result in the evaluation of an integral in terms of elementary functions, whereas before the c.o.v. this was not possible? added 599 characters in body Mar 20 revised Can a change of variable result in the evaluation of an integral in terms of elementary functions, whereas before the c.o.v. this was not possible? added 4 characters in body Mar 18 revised I need to solve $\phi (x,y) = \frac{2V}{\pi} \int_{0}^{\infty} \frac{\sin(kx)\cosh(ky) dk}{k\cosh(ka)}$ added 156 characters in body Mar 3 revised Why is $1 - \frac{1}{1 - \frac{1}{1 - \ldots}}$ not real? deleted 2 characters in body Feb 25 revised Is this inequality for integrals correct: $\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)}dx\right|>\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)^2}dx\right|.$ added 537 characters in body Feb 25 revised Is this inequality for integrals correct: $\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)}dx\right|>\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)^2}dx\right|.$ edited body Feb 25 revised Is this inequality for integrals correct: $\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)}dx\right|>\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)^2}dx\right|.$ edited body Feb 25 revised Is this inequality for integrals correct: $\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)}dx\right|>\left|\int_{\mathbb{R}}\frac{f(x)}{g(x)^2}dx\right|.$ added 95 characters in body Feb 24 revised Does $\mid x-y\mid>0,x\neq-y$ imply $\mid\mid x\mid-\mid y\mid\mid>0$? edited body Feb 16 revised How to solve this DDE: $f'(x-1)-f''(x)=g(x)$. added 3 characters in body Feb 16 revised How to solve this DDE: $f'(x-1)-f''(x)=g(x)$. edited title Feb 12 revised Solving a delay differential equation added 136 characters in body; edited tags Feb 12 revised Solving a delay differential equation added 3 characters in body Feb 12 revised Solving a delay differential equation deleted 3 characters in body Feb 12 revised Solving a delay differential equation added 3 characters in body Feb 10 revised Is it true that $|e^z|\le e^{|z|}$ for all $z \in \mathbb C$? added 53 characters in body Feb 3 revised Compute the integrals using the residue theorem added 4 characters in body Jan 20 revised I need to solve $\phi (x,y) = \frac{2V}{\pi} \int_{0}^{\infty} \frac{\sin(kx)\cosh(ky) dk}{k\cosh(ka)}$ added 763 characters in body