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

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
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
19
asked Approaching infinity with volume of turning body
Jan
2
asked Why is $\frac{(x-1)+2}{(x-1)(x+1)} = \frac{1}{x-1}$?
Jan
2
answered Why is $\frac{(x-1)+2}{(x-1)(x+1)} = \frac{1}{x-1}$?
Sep
25
answered Finding correlation in plotted graph
Sep
17
asked Finding correlation in plotted graph
Sep
16
asked Finding correlation through plotting logarithms
Sep
13
asked Found one root, how do I know to keep searching or not?
Sep
13
asked Finding $\alpha$ for $\sin(4 \alpha + \frac{\pi}{6}) = \sin (2\alpha + \frac{\pi}{5})$
Sep
13
asked $\sin 4\alpha = 2\sin 2\alpha \times \cos 2\alpha $?
Sep
13
asked Two unrelated equations, $w^2 = -\frac{15}{4} - 2i$ and $z^2 - (3-4i)z + (2-4i) = 0$?
Sep
12
asked Calculate $\cos(v+\frac{\pi}{6})$ when $\cos v = -\frac{2}{3}$
Sep
10
asked Finding highest possible value of function
Aug
30
asked Calculating the chess problem, sum $\sum_{k=0}^{63}2^{k}$
Aug
26
asked Calculate absolute values with unknown constant