10,317 reputation
21644
bio website phdcomics.com/comics.php
location Antarctica
age 94
visits member for 2 years, 10 months
seen 22 hours ago

MATH is a wonderful thing...

MATH is a really cool thing..

So get off your act lets do some MATH...

MATH, MATH, MATH, MATH, MATH...

http://www.youtube.com/watch?v=aa8U0nL-KXg


1d
reviewed Leave Open Integration question involving Area and f(t)
1d
revised If $\gcd(a,c)=1=\gcd(b,c)$, then $\gcd(ab,c)=1$
edited title
1d
revised If $p, q$ are prime and $p > q$, then $p|(p – q)^p + q$, proof?
edited title
1d
revised If $a^2=b^2+c^2$ and $0<n<2$ prove $a^n<b^n+c^n$
added 24 characters in body; edited title
1d
revised Find $dy/dx$ where $(7x+2y)^2=6x^4y^3$
added 17 characters in body; edited title
2d
revised Suppose that $V_1$ and $V_2$ are subsets of a vector space…
added 6 characters in body; edited title
Jul
21
awarded  Cleanup
Jul
21
revised Show that {$a_n$} is convergent and find sup{$a_n| n \in Z_+ $}
rolled back to a previous revision
Jul
21
revised Show that {$a_n$} is convergent and find sup{$a_n| n \in Z_+ $}
added 5 characters in body
Jul
21
revised Prove that $n^2 + 1$ is not a multiple of $6$ for any positive integer $n$
added 6 characters in body; edited title
Jul
21
revised If $f$ is in $R[a,b]$, show that
added 4 characters in body; edited title
Jul
20
revised Solving equation $a^{-x} + \log x/\log a = 0$
added 5 characters in body; edited title
Jul
18
revised Double integral calculation where $x=(y-1)^{2}-1$ and $y=x$. Not sure whether I should do it in terms of $y$ or $x$?
edited title
Jul
16
reviewed Edit suggested edit on How to prove that the graph of $r=\sin(\frac{\theta}{2})$ is symmetry about polar axis
Jul
16
revised How to prove that the graph of $r=\sin(\frac{\theta}{2})$ is symmetry about polar axis
correct the format
Jul
16
comment How do i prove $\int_{0}^{2a}f(x) dx = \int_{0}^{a}f(x)dx +\int_{0}^{a}f(2a-x)dx$
This is the way for me to get $(1)$: Since we want to get $\int_{0}^{2a}f(x) dx = \int_{0}^{a}f(x)dx +\int_{0}^{a}f(2a-x)dx$, therefore I try to write $\int_{0}^{2a}f(x) dx$ as $(1)$. The first term on the RHS in $(1)$ is exactly the first term of the required expression. So I try to rewrite the second term on the RHS of $(1)$ to get the required expression.
Jul
15
answered How do i prove $\int_{0}^{2a}f(x) dx = \int_{0}^{a}f(x)dx +\int_{0}^{a}f(2a-x)dx$
Jul
15
revised How do i prove $\int_{0}^{2a}f(x) dx = \int_{0}^{a}f(x)dx +\int_{0}^{a}f(2a-x)dx$
added 6 characters in body; edited title
Jul
14
reviewed No Action Needed Birthday Problem - Company Stats Strange or Average?
Jul
14
reviewed Approve suggested edit on Compute integral: $\int_{0}^{\pi/2}\log(a^2\sin^2 x+b^2\cos^2 x )dx$