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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
Sep
10
accepted Need help figuring out $\frac{d}{dx}(x^2)|{x=3}$
Sep
10
accepted Logarithmic function
Sep
10
accepted Number of sides on a polygon to interal angles relationship/function
Sep
10
accepted How to find sum of quadratic
Sep
10
accepted Evaluate $\tan\left(2\sin^{-1}\frac{\sqrt{5}}{5}\right)$ without using a calculator
Sep
10
accepted Function of $ \sqrt{2+\sqrt{2+\sqrt{2+}}}\ldots $
Sep
10
revised Graph single equation on calculator
added 169 characters in body
Sep
10
revised Graph single equation on calculator
edited title
Sep
10
asked Graph single equation on calculator