412 reputation
214
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visits member for 2 years, 4 months
seen 17 hours ago

Nov
1
asked $a^4+b^2+c^2=2014$
Oct
11
answered Graph single equation on calculator
Sep
24
awarded  Autobiographer
Sep
17
awarded  Tumbleweed
Sep
15
accepted $\displaystyle \frac{d}{dx}2^x$ where $x=0$
Sep
15
comment $\displaystyle \frac{d}{dx}2^x$ where $x=0$
@Shahar Yes {need more characters}
Sep
15
comment $\displaystyle \frac{d}{dx}2^x$ where $x=0$
@user164587 Haha, I hadn't ever noticed that. I'm in Calc 1 and we still use log as base 10 if not specified. And most, if not all calculators, naturally use base 10
Sep
15
revised $\displaystyle \frac{d}{dx}2^x$ where $x=0$
deleted 3 characters in body
Sep
15
asked $\displaystyle \frac{d}{dx}2^x$ where $x=0$
Sep
14
comment Prove rigorously: $\displaystyle \lim_{x\rightarrow 2}x^2+5x=14$
So it's like squaring both sides? (But multiplying by equivalents)
Sep
13
comment Prove rigorously: $\displaystyle \lim_{x\rightarrow 2}x^2+5x=14$
How did you find $|x-2||x+7|<(9+ \delta)\delta $?
Sep
12
comment Prove rigorously: $\displaystyle \lim_{x\rightarrow 2}x^2+5x=14$
$\delta>|x-2|$?
Sep
12
asked Prove rigorously: $\displaystyle \lim_{x\rightarrow 2}x^2+5x=14$
Sep
11
accepted Derivative at 4, when $f(x)=\frac{1}{\sqrt{2x+1}}$
Sep
11
comment Derivative at 4, when $f(x)=\frac{1}{\sqrt{2x+1}}$
There was an error in my question (wrong function). This is relevant. Sorry for the confusion
Sep
11
comment Derivative at 4, when $f(x)=\frac{1}{\sqrt{2x+1}}$
yes there is an error. will fix in a moment
Sep
11
asked Derivative at 4, when $f(x)=\frac{1}{\sqrt{2x+1}}$
Sep
10
accepted Speed of a bicycle wheel
Sep
10
accepted Evaluate the limit, if it exists
Sep
10
accepted Correct sigma notation for an equation that sums another equation