The Chaz 2.0

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If I speak with the tongues of men and of angels, ...

If I know all mysteries and all knowledge, ...

If I have all faith, so as to remove mountains, but do not have love,

I am nothing.

I hereby commit to contributing to this site without any rudeness, sarcasm, accusation, or any other unloving speech.


127 Answers

newest activity votes
42
True or false? $x^2\ne x\implies x\ne 1$
dec 5 '11 at 15:35
24
Coffee Break Riddle
jan 27 '12 at 20:18
19
Proving $\sqrt 3$ is irrational.
apr 13 '12 at 18:02
15
What's bad about calling $i$ “the square root of -1”?
mar 28 '12 at 15:10
10
Square Root Inequality
mar 21 '12 at 16:26
10
Proving $(1 + 1/n)^{n+1} \gt e$
mar 16 '12 at 21:22
9
Simple infinite series question
mar 27 '12 at 6:13
9
Sums of logarithms $\small \log(1+1/1) + \log(1+1/2) + \ldots \log(1+1/n) $ how is this telescoping?
sep 22 '11 at 22:13
9
Why is it possible to conclude everything from a false statement?
jul 26 '11 at 2:30
8
Piecewise functions: Got an example of a real world piecewise function?
jun 5 '12 at 12:43
7
Why this limit can't be computed like this?
nov 11 '11 at 16:23
6
How to factor $2x^2 - 8y^2$
nov 15 '11 at 0:31
5
How do you prove that proof by induction is a proof?
oct 17 at 20:20
5
Show that $ a，b, \sqrt{a}+ \sqrt{b} \in\mathbb Q \implies \sqrt{a},\sqrt{b} \in\mathbb Q $
apr 25 '12 at 3:24
5
Obtain the formula for the following sequence
apr 13 '12 at 19:21
5
Proof of even like powers?
nov 15 '11 at 2:55
5
Multiply: $(4 + x)(x^2 + 2x +3)$
mar 14 '11 at 16:33
5
Are half of all numbers odd?
jan 23 '12 at 21:11
5
For an universal set $U$, prove or disprove, for sets $A,B,C \subseteq U, A \cap C = B \cap C \implies A = B$
sep 28 '11 at 2:02
5
approximation of $\frac{6\ln 10}{\ln 2}$?
jun 29 '11 at 15:05
5
How would one calculate the cosine of an obtuse angle?
jun 15 '11 at 18:17
4
First derivative of $\sqrt[\large 5]{\frac{t^3 + 1}{t + 1}}$
may 20 at 20:39
4
Solve $\frac{\tan^2x}{1+\tan^2x} = \sin^2x$
nov 6 at 17:49
4
Creative Thinking Questions?
may 27 '12 at 2:24
4
Getting the angles of a non-right triangle when all lengths are known
mar 19 '12 at 23:53
4
Find the slope of a line given a point and an angle
feb 4 '12 at 20:57
4
How can I calculate the centroid of polygon?
dec 11 '11 at 15:00
4
A question regarding limits
nov 11 '11 at 14:47
4
Did I tackle this implicit differentiation problem correctly?
oct 25 '11 at 0:56
4
How do I compute $2ab\cos C$ given $a,b,C$? Isn't an operator missing there?
jun 15 '11 at 18:21
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