Zarkon
 Name:
 Lord Zarkon
 School:
 Planet Doom University
 About:
 Ph.D.s in Galactic Domination and Mathematical Statistics.
One day I hope to be ruler of the Universe. Also, there are infinity many twin primes.
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Questions Answered

Loser66:
Group Title
Use the Mean Value Theorem to show that for any n>0
\(\dfrac{n}{2n+1}<\sqrt{n^2+n}n<\dfrac{1}{2}\)
Please, help
 updated 2 days ago
 10 replies
 1 Medal
Mathematics

sabmar28:
Group Title
Ln x+ Ln (x+2)=4
 updated 5 days ago
 3 replies
 No Medals Yet
Mathematics

LeahKaree:
Group Title
Please help me expand this binomial
 updated 5 days ago
 9 replies
 No Medals Yet
Mathematics

kl0723:
Group Title
Integral help:
 updated 5 days ago
 41 replies
 3 Medals
Mathematics

mathmath333:
Group Title
\(\large \begin{align} \color{black}{ \text{prove that if a and b are positive integers } \hspace{.33em}\\~\\
\text{then } \sqrt 2\hspace…
 updated 6 days ago
 6 replies
 5 Medals
Mathematics

RockerChic8:
Group Title
Check my answer on removable discontinuities?
 updated 11 days ago
 6 replies
 1 Medal
Mathematics

Whitemonsterbunny17:
Group Title
Contrapositives.. this one's confusing..
 updated 20 days ago
 51 replies
 3 Medals
Mathematics

cstang:
Group Title
Find the indicated limit, if it exists.
limit of f of x as x approaches 5 where f of x equals 5 minus x when x is less than 5, 8 when x …
 updated 22 days ago
 22 replies
 1 Medal
Mathematics

SithsAndGiggles:
Group Title
Show that
\[\int_0^\infty \frac{\ln x}{1+x^2}\,dx=0\]
 updated one month ago
 17 replies
 6 Medals
Mathematics

ganeshie8:
Group Title
Challenge problem : Show that \(F(a) = \frac{2^{2^{a+1}}1}{2^{2^a}+1}\) is an integer for all \(a \in \mathbb{N} \)
 updated one month ago
 21 replies
 13 Medals
Mathematics

shavante:
Group Title
who go to ashworth college
 updated one month ago
 1 reply
 1 Medal
Mathematics

campbell_st:
Group Title
find the value
 updated one month ago
 19 replies
 4 Medals
Mathematics

campbell_st:
Group Title
Pythagoras arranges the numbers 1, 2, 3, ..., 11, 12 into 6 pairs so that the sum of any 2 numbers in a pair is prime and no two of these pr…
 updated one month ago
 41 replies
 4 Medals
Mathematics

dolphins121:
Group Title
find the value of lim tan(pi/4 + h)tan(pi/4)/h as h approaches 0
help :(
 updated one month ago
 61 replies
 4 Medals
Mathematics

Diwakar:
Group Title
evaluate the integral
 updated one month ago
 31 replies
 8 Medals
Mathematics

Kainui:
Group Title
Show that i^i is a real number.
 updated one month ago
 7 replies
 7 Medals
Mathematics

Alexander95:
Group Title
FAST LIMIT !
…
 updated one month ago
 32 replies
 1 Medal
Mathematics

Mathhelp346:
Group Title
How do I evaluate sin(pi/3) without using a calculator?
 updated one month ago
 18 replies
 1 Medal
Mathematics

hba:
Group Title
Please fill this up it is for my trw class
https://www.surveymonkey.com/s/69W8WZS
 updated one month ago
 3 replies
 No Medals Yet
Mathematics

davidellis17:
Group Title
find the additive inverse of 85i
 updated one month ago
 19 replies
 1 Medal
Mathematics

jamieneedsmathhelp:
Group Title
simplify: [(n+1)!/n!]n
 updated one month ago
 4 replies
 1 Medal
Mathematics

Study_Guy2:
Group Title
L'Hopitals rule: evaluate the limit:
 updated one month ago
 91 replies
 8 Medals
Mathematics

aubreywoodley22:
Group Title
Marty has exactly 5 blue pens, 6 black pens, and 4 red pens in his knapsack. If he pulls out one pen at random from his knapsack, what is th…
 updated one month ago
 1 reply
 No Medals Yet
Mathematics

Slcarebear05:
Group Title
Why does 0.2 times 0.4 =0.08
 updated one month ago
 3 replies
 1 Medal
Mathematics

SithsAndGiggles:
Group Title
Find a closed form (if it exists) for the \(n\)th term of the sequence of numbers formed by the sequence of tangent circles centered at \((k…
 updated one month ago
 16 replies
 1 Medal
Mathematics

micahwood50:
Group Title
Having a little trouble with it:
Is \(f(x) = \dfrac{2x}{1+x^2}\) an injective? Why or why not?
…
 updated one month ago
 17 replies
 11 Medals
Mathematics

sodiumfree10:
Group Title
Help! How do I approach this question:
Obtain an explicit formula for function(x) of
f(x)=sum when n=1 to infinity of (nx^n)
 updated one month ago
 9 replies
 4 Medals
Mathematics

n121:
Group Title
limx>0 of (acosbx)/x^2 =8 find a and b
without lhopital
 updated one month ago
 21 replies
 2 Medals
Mathematics

jklmfao:
Group Title
sin(tan^1(1)+sin^1(2/3))
 updated one month ago
 1 reply
 No Medals Yet
Mathematics

czarluc:
Group Title
divide 30 into two parts so that the sum of their squares is a minimum
 updated one month ago
 23 replies
 3 Medals
Mathematics
 > Older questions