Mathematics
Xander Henderson's user avatar
Xander Henderson's user avatar
Xander Henderson's user avatar
Xander Henderson
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  • Member for 6 years, 2 months
  • Last seen this week
  • Holbrook, AZ, USA
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I am faculty in mathematics at Northland Pioneer College in beautiful Navajo County, Arizona.

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All Questions Answers
Score Newest
answer
89
Can area of rectangle be greater than the square of its diagonal?
Nov 15, 2018
answer
74
Why do we need so many trigonometric definitions?
Mar 29, 2018
answer
53
"Gaps" or "holes" in rational number system
Apr 29, 2020
answer
42
Why do I get a converging result when pressing cosine multiple times on a calculator?
Oct 11, 2017
answer
30
A curiosity: how do we prove $\mathbb{R}$ is closed under addition and multiplication?
Dec 12, 2018
answer
30
What is the name of the number that is being added to another number?
May 20, 2018
answer
25
Why is a derivative defined using limits?
Jun 27, 2018
answer
24
What's the precise meaning of the expression "induced by" in mathematics?
Mar 23, 2018
answer
22
Getting different answers when integrating using different techniques
Nov 27, 2019
answer
21
What is a natural number?
Sep 20, 2017
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Enforcement of Quality Standards
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Do we want accepted answers unpinned on Math.SE?
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Why image cannot be used for explaining my maths problem?
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2020 Election Results: Congratulations to our new moderator!
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What's a replacement for "married couples" in combinatorics problems?
46
In the U.S., is it appropriate for math professors to ask students to rewrite their messy (poorly handwritten) homework to be graded?
41
Is it a good thing as a teacher to declare things like "Good! Things are becoming clearer already."
32
Can we keep alcoholic beverages indefinitely?
32
Why does one need to be a certified teacher to teach at secondary level and lower, but not at tertiary level?

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