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seen 20 hours ago

I was born to answer lhfs.


Nov
17
suggested suggested edit on Proof problem: Show that $n^2-1$ is divisible by $8$, if $n$ is an odd positive integer.
Nov
17
answered Proof problem: Show that $n^2-1$ is divisible by $8$, if $n$ is an odd positive integer.
Nov
11
comment What is the coefficient of the $x^3$ term in the expansion of $(x^2+x-5)^7$ (See details)?
@Limitless: BTW, the thing we are doing—evaluating $a$ at $0$—has a special name: Maclaurin Series. It's just another derivative of the Taylor Series. - Parth
Oct
21
comment What step is wrong?
I wonder why the most common questions can't be researched on [a search engine] before being asked.
Oct
21
answered What step is wrong?
Oct
2
answered How to solve for $x$ in $\frac{200}{x+10} = \frac{200}{x} -1$?
Sep
26
comment Difference between sq km and km sq
Heh, you're a lifesaver.
Sep
26
revised Difference between sq km and km sq
added 1 characters in body
Sep
26
comment Difference between sq km and km sq
@Henning: Thanks, I just got it right.
Sep
26
revised Difference between sq km and km sq
edited body
Sep
26
answered Difference between sq km and km sq
Sep
26
answered Function Composition Trouble
Sep
25
answered Proportion of Values
Sep
25
answered The meaning of implication in logic
Sep
25
revised Why can ALL quadratic equations be solved by the quadratic formula?
added 91 characters in body
Sep
25
answered Why can ALL quadratic equations be solved by the quadratic formula?
Sep
24
awarded  Good Answer
Sep
24
revised How is $e^x$ read aloud?
added 3 characters in body
Sep
24
answered How to calculate $(3+4i)\cdot(1+i)$
Sep
24
revised Prove $\lim\limits_{n \to\infty} a_n =\lim\limits_{n \to\infty} \dfrac{2n-1}{3n+2} = \dfrac{2}{3}$
Readable absolute value bars, better MathJax.