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visits member for 2 years, 1 month
seen May 22 '13 at 16:30

Jul
2
awarded  Curious
Jul
2
awarded  Yearling
Nov
12
awarded  Popular Question
Jul
2
awarded  Yearling
May
22
revised Choice of numbers in calculating $\lim_{x\rightarrow 0}\frac{e^{2x}-1}{\sin 3x}$
added 1 characters in body
May
22
comment Choice of numbers in calculating $\lim_{x\rightarrow 0}\frac{e^{2x}-1}{\sin 3x}$
Ah, yes, I meant 2x, question is updated.
May
22
asked Choice of numbers in calculating $\lim_{x\rightarrow 0}\frac{e^{2x}-1}{\sin 3x}$
May
14
asked Primitive function of $x^3 \sin x^2$
May
12
asked $\frac{(x + \sqrt{x}) - (x-\sqrt{x})}{\sqrt{x+\sqrt{x}}+\sqrt{x-\sqrt{x}}} = \frac{2}{\sqrt{1+\frac{1}{\sqrt{x}}}+\sqrt{1-\frac{1}{\sqrt{x}}}}$?
Jan
21
asked How come $\int_{-\infty}^\infty \! e^{-|t|} \, \mathrm{d} t = 2\int_{0}^\infty \! e^{-|t|} \, \mathrm{d} t$?
Jan
20
revised What is the limit of $\frac{e^{6x}-2e^{3x} + 1}{x^2}$, as $x \rightarrow 0$?
edited title
Jan
20
asked What is the limit of $\frac{e^{6x}-2e^{3x} + 1}{x^2}$, as $x \rightarrow 0$?
Jan
20
answered What is the limit of $\frac{e^{6x}-2e^{3x} + 1}{x^2}$, as $x \rightarrow 0$?
Jan
20
accepted Approaching infinity with volume of turning body
Jan
19
comment Approaching infinity with volume of turning body
The answer is $2\pi\left[ \ln \frac{t}{t+1} + \frac{1}{t+1} \right ]_1^\sqrt{w}$
Jan
19
comment Approaching infinity with volume of turning body
That's my thinking, yes, but it doesn't seem to be it according to the text book answer.
Jan
19
asked Approaching infinity with volume of turning body
Jan
18
awarded  Critic
Jan
5
revised Why is $\frac{(x-1)+2}{(x-1)(x+1)} = \frac{1}{x-1}$?
added 111 characters in body
Jan
5
accepted Why is $\frac{(x-1)+2}{(x-1)(x+1)} = \frac{1}{x-1}$?