If $f$ is twice derivable at $a$, compute the following limit.
105293
Proof of the second symmetric derivative
118154
$f: \mathbb{R} \to \mathbb{R}$ that takes each value in $\mathbb{R}$ twice
3387
Derivative of $f(x)=|x|$
96022
Symmetry of second derivative - Sufficiency of twice-differentiability
66639
Second Derivative
123790
Can we split the following limit?
41557
Most general $A \subseteq \mathbb R$ to define derivative of $f: A \to \mathbb R$?
122073
Computing $\lim_{n \rightarrow\infty} \int_{a}^{b}\left ( f(x)\left | \sin(nx) \right | \right )$ with $f$ continuous on $[a,b]$
104263
How to show that $f'(x)<2f(x)$
101037
The given limit is a derivative, but of what function and at what point?
32744
A clarification in a limit
60520
Upper bound for $|f(0)|$ based on its behavior within the unit disk.
21879
Show that if $\lim_{x\to a}f'(x) = A$ then $f'(a)$ exists and equals A
32853
Computing $\lim_{A\to\infty} \frac{1}{A} \int\limits_1^A \! A^{\frac{1}{x}} \, \mathrm{d}x.$
64485
Proving $\displaystyle\lim_{h\to0}\frac{f(x+h)-2f(x)+f(x-h)}{h^2}=f''(x)$
122485
Limit of $f(x+\sqrt x)-f(x)$ as $x \to\infty$ if $|f'(x)|\le 1/x$ for $x>1$
32742
The limit of $\frac{|A_n|}{n^2}$