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visits member for 2 years, 5 months
seen Jan 17 at 23:26

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
Sep
8
asked $\displaystyle \lim_{x\rightarrow 5}x^2=25$
Sep
7
comment Simplifying compound fraction: $\frac{3}{\sqrt{5}/5}$
I know this an old question, but if you had simply changed your √5/5 to a √5/√5, you would've got 3√5÷5/5 and gotten your answer. The whole point of multiplying a complex faction by a number to simplify it is to times it by 1 (√5/√5 in this case) because multiplying anything by 1 is the same thing.
Aug
28
revised Evaluate the limit, if it exists
added 58 characters in body
Aug
28
asked Evaluate the limit, if it exists
Aug
24
accepted verify $\lim_{x\rightarrow0}(4x^2+2x+5)=5$
Aug
24
comment verify $\lim_{x\rightarrow0}(4x^2+2x+5)=5$
ok I think $|x||4x+2|$ is the answer my professor is looking for