Prove $\lim_{(x,y)\to (0,0)}\frac{x^4y^4}{(x^2+y^4)^3}$ does not exist
54567
Multivariable limit - perhaps a trickier problem I am stuck on.
78921
Multivariable limit $\lim_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 1}$
146663
Limit $\lim_{n \to \infty} \frac {a_n}{2^{n-1}}=\frac 4{\pi}$ for $a_{n+1}=a_n+\sqrt{1+a_n^2}$ and $a_0=0$
22686
Show $\lim_{h\to 0} \frac{(a^h-1)}{h}$ exists without l'Hôpital or even referencing $e$ or natural log
126211
How to compute $\lim _{x\to 0}\frac{x\bigl(\sqrt{3e^x+e^{3x^2}}-2\bigr)}{4-(\cos x+1)^2}$?
129011
Is there limit $ \lim_{(x,y) \to (0,0)} \frac{x^3}{x^2 + y^2}$?
109540
Simplify limit problem $\lim\limits_{x\to 0}\frac{\sqrt{2+x^2}-\sqrt{2+x^2}}{x^2}$
13533
Proof that the limit of $\frac{1}{x}$ as $x$ approaches $0$ does not exist
2167
Find the limit $\lim\limits_{x\to \infty}(e^{-x}+2\cos3x)$, or show that it does not exist.
119469
Find the limit of $\lim\limits_{(x,y)\to (0,0)} \frac{x^2y^2}{x^2y^2+(x-y)^2}$
131485
Continuity of $\frac{x^3y^2}{x^4+y^4}$ at $(0,0)$?
155188
How do I prove this limit does not exist: $\lim_{x\rightarrow 0} \frac{e^{1/x} - 1}{e^{1/x} + 1} $
121085
Showing that $\lim\limits_{x \rightarrow 0} \frac{1}{x}$ does not exist.
133874
Proof that $\lim_{n\to\infty}{\sin{100n}}$ does not exist
85388
Prove that the limit of $\sin n$ as $n \rightarrow \infty$ does not exist
60878
How to prove that $\lim_{(x,y) \to (0,0)} \frac{x^3y}{x^4+y^2} = 0?$
50509
Prove that $\int_0^4 \frac{\ln x}{\sqrt{4x-x^2}}~dx=0$ (without trigonometric substitution)