User Chrisuu - Mathematics Stack Exchange

Chrisuu

Member for 10 years, 1 month
Last seen more than a week ago

Canada

11 Answers

Score Activity Newest

12 votes

How to use math textbooks

answered Feb 23, 2013 at 15:21

4 votes

Do we need to formally teach the Greek Alphabet?

answered Mar 6, 2014 at 17:39

4 votes

Truth set of $-|x| \lt 2$?

answered Feb 22, 2013 at 18:43

3 votes

Accepted

Proving $(5-\frac5k )(1+\frac{1}{(k+1)^2}) \le 5 - \frac{5}{k+1}$

answered Feb 28, 2013 at 8:48

2 votes

Word Problems(sats practice booklet)

answered Feb 24, 2013 at 14:31

1 vote

Given an inequality of the form (x-a), (x-b), how do the factors (x-a), (x-b) split the number line into the following 3 parts?

answered Apr 19, 2019 at 22:38

0 votes

Accepted

Proving an inequality involving absolute value; how do I justify using a conjunction (and) instead of a disjunction (or)?

answered Apr 21, 2019 at 17:57

0 votes

Why is the domain of a composition of functions an intersection and not a union?

answered Apr 26, 2019 at 20:48

0 votes

What is the range of this combined function?

answered May 4, 2019 at 13:16

0 votes

Accepted

How do I derive $(\forall x)(\forall y)(\exists z)(x = y \circ z)$ from these three group axioms and some previously established theorems?

answered Dec 15, 2013 at 20:22

-2 votes

The derivative of $ \tan x$ is $ \sec^2 x$. Why?

answered Jul 24, 2019 at 3:58