List questions from solution-verification

Published on 21 Mar 2014 - 15:38

2.3k

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Show that $||x| - |y|| \le |x-y|$ for all $x, y, \in \mathbb{R}$

Published on 22 Mar 2014 - 10:30

44

Views

Differential equation problem!

Published on 22 Mar 2014 - 19:53

36

Views

normal of a function

Published on 23 Mar 2014 - 14:14

663

Views

drop independent random variables in conditional expectation expression

Published on 23 Mar 2014 - 23:04

66

Views

Is this proof by induction that $13 \mid 4^{2n+1}+3^{n+2}$ correct/sufficient?

Published on 24 Mar 2014 - 0:21

364

Views

Word Problem -- System of Equations

Published on 25 Mar 2014 - 0:34

4.8k

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Proof of the ‘second’ triangle inequality

Published on 25 Mar 2014 - 2:12

51.8k

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Find a vector parallel to the line of intersection of the two given planes.

Published on 25 Mar 2014 - 22:46

10k

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Showing that $|z|^2$ is nowhere analytic

Published on 25 Mar 2026 - 12:53

19.1k

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A tree has at least two leaves (proof by contradiction)

Published on 30 Mar 2014 - 17:20

3.4k

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How do I find the probability of specified events from a permutation of the 26 english letters?

Published on 02 Apr 2014 - 0:57

31

Views

Did I correctly calculate the specificity and the false negative rate?

Published on 02 Apr 2014 - 21:47

2.2k

Views

Parabola problem involving depth.

Published on 04 Apr 2014 - 16:05

1.4k

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Find the general solution to diophantine equation $-221x + 187y - 493 = 0$

Published on 06 Apr 2014 - 21:22

List Question

Are these Laplace transforms wrong in Stroud's Advanced Engineering Math Book?

Show that $||x| - |y|| \le |x-y|$ for all $x, y, \in \mathbb{R}$

Differential equation problem!

normal of a function

drop independent random variables in conditional expectation expression

Is this proof by induction that $13 \mid 4^{2n+1}+3^{n+2}$ correct/sufficient?

Word Problem -- System of Equations

Proof of the ‘second’ triangle inequality

Find a vector parallel to the line of intersection of the two given planes.

Showing that $|z|^2$ is nowhere analytic

A tree has at least two leaves (proof by contradiction)

How do I find the probability of specified events from a permutation of the 26 english letters?

Did I correctly calculate the specificity and the false negative rate?

Parabola problem involving depth.

Find the general solution to diophantine equation $-221x + 187y - 493 = 0$

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