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James A

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15 How long to catch up to a stream started $1$ hour ago at $1.5$x speed? May 29 '20
13 Where is the error in this “proof” that 3=0? [duplicate] Aug 17 '20
4 Is it true that $\frac{\ln(a)}2=\ln(\sqrt{a})$ for $a>0$? In particular, is $\frac{\ln(2)}{2}=\ln(\sqrt2)$? Jul 18 '20
3 Is the series $\sum_\limits{n=1}^\infty\frac{n}{n^3+1}$ convergent or divergent? Aug 21 '20
3 Prove. $e^{2x^2-\sin^2(x\pi)} = 5$ has a solution in $(0,1)$. May 23 '20
2 How many different telephone numbers are possible in city​ A? Feb 16 '20
2 Probability of extracting none of a certain thing out of multiple extractions May 19 '20
2 How to write numbers in the language of first-order set theory. [duplicate] May 24 '20
2 Is it possible to put $x^3+62x^2+620x+1000=0$ into the form $x(Ax+1)(Bx+1)=0$? Jun 8 '20
2 Proof verification and explanation in probability Jun 1 '20
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