Mathematics
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Panglossian Oporopolist
  • Member for 9 years, 1 month
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question
35
What is the derivative of: $f(x)=x^{2x^{3x^{4x^{5x^{6x^{7x^{.{^{.^{.}}}}}}}}}}$?
Dec 29, 2015
answer
24
"What if" math joke: the derivative of $\ln(x)^e$
Mar 7, 2015
question
23
Analytic form of: $ \int \frac{\bigl[\cos^{-1}(x)\sqrt{1-x^2}\bigr]^{-1}}{\ln\bigl( 1+\sin(2x\sqrt{1-x^2})/\pi\bigr)} dx $
Feb 28, 2015
answer
17
Books Preparatory for Putnam Exam
Mar 5, 2015
question
15
How can I evaluate the following integral? $\int(\sqrt{x}-x)(e^{\arctan\sqrt{x}})^2dx$
Feb 16, 2017
answer
12
Evaluating $\int_{0}^{\infty} \left[\left(\frac{2015}{2015+x}+\cdots +\frac{2}{2+x}+\frac{1}{1+x}-x\right)^{2016}+1 \right] ^{-1}\mathrm{d}x$
May 6, 2017
question
11
Doubt regarding divisibility of the expression: $1^{101}+2^{101} \cdot \cdot \cdot +2016^{101}$
Apr 1, 2016
answer
11
Reversing an integer's digits is multiplicative for small digits
Mar 11, 2017
answer
10
Denesting radicals like $\sqrt[3]{\sqrt[3]{2} - 1}$
Feb 26, 2015
question
10
If $x^{x^4}=4$, then what is the value of $x^{x^2}+x^{x^8}$?
Oct 6, 2015
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Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - 07/2018 )
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IUPAC nomenclature for an interesting looking organic compound
12
Is there a word to refer to words that appear as though they have been misspelled?
5
Does any word rhyme with 'wolf'?