Mark's user avatar
Mark's user avatar
Mark's user avatar
Mark
  • Member for 12 years, 2 months
  • Last seen this week
  • Milan, Italy
8 votes
Accepted

How do I evaluate these undefined limits?

7 votes

Why are even/odd functions called even/odd?

5 votes
Accepted

Computing $\lim_{x\to\infty}{3^x\over \sqrt {9^x - 4^x}}$

5 votes
Accepted

Find $\lim_{n\to\infty} \frac{1^4+2^4+\dots+n^4}{1^4+2^4+\dots+n^4+(n+1)^4}$

4 votes
Accepted

How to integrate this double integral?

4 votes

if $(a+\sqrt{a^2+1})$ and $(b+\sqrt{b^2+1})$ are converse then prove that a and b are opposites

4 votes
Accepted

Fidning multivariable limit

3 votes

How can I determine convergence of the series of $\frac {(2n)!}{2^{2n}(n!)^2}$

3 votes

Is $\lim_{x\to 0+} \frac{\ln(x)}{\ln(x)} = \frac{-\infty}{-\infty} = 1$

3 votes

Value of $\cos^2\alpha-\sin^2\alpha$

3 votes

How to prove $n!\leq(\frac{n+1}{2})^n$

3 votes

Exponential Function as an Infinite Product

3 votes

Prove $\ln\frac{p}{q}\leq \frac{p-q}{\sqrt{pq}}$ for $0<q\leq p$

2 votes

Epsilon-delta proof of continuity

2 votes
Accepted

$\forall n \in \mathbb{N^*}$, prove that $|{\frac{\sqrt{n^2+2}}{2n} - \frac{1}{2}}| < \frac{1}{2n^2}$

2 votes
Accepted

Find the sum of $\sum_{n=1}^\infty \frac{x^n}{2^{n+1}}$

2 votes
Accepted

Finding limit using l'hôspital

2 votes

Integral involving a trig. term

2 votes

$\lim_{y \rightarrow b} \lim_{x \rightarrow a} f \neq \lim_{(x,y)\rightarrow (a,b)} f \neq \lim_{x \rightarrow a} \lim_{y \rightarrow b} f$

2 votes
Accepted

Solutions to Linear Equation

2 votes

Derivative by definition

2 votes

Differentiability of $f(x,y)=2xy+\frac{x}{y}$ at $(1,1)$

2 votes
Accepted

If limit of a function exists does it imply that function is bounded?

2 votes

Calculate the radius of convergence of $\sum \frac{\ln(1+n)}{1+n} (x-2)^n$

2 votes

Show that f is not differentiable at the origin of the following function.

2 votes
Accepted

Solve limit $\lim _{x\to \infty } \left(\frac{5-x^3}{1-x^3}\right)^{2x^2+1}$.

2 votes

How to find a definite integral over a symmetric interval without finding the antiderivative?

2 votes

Integral of trigonometric function using substitution

2 votes
Accepted

Proving $\lim_{n\to\infty} \left(\frac {2}{3}\right)^n=0$ using limit definition

2 votes

Integration by substitution (Why can't I use $u =\sin^2 x$ for $\int \sin^2 x \cos x \space dx$ )