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Varazda's user avatar
Varazda's user avatar
Varazda
  • Member for 7 years, 4 months
  • Last seen more than a month ago
12 votes

How do you derive a normal vector from the equation of a line?

9 votes
Accepted

Derivative of arcsin

6 votes
Accepted

How can I get the limit of this problem

4 votes

How to determine the period of composite functions?

4 votes
Accepted

A definite integral of $(\log(x))^2 x^{3/2}$

3 votes
Accepted

Explanation for congruences equality

2 votes

Improper integrals with parameter

2 votes
Accepted

Non linear first order ODE, not exact and not separable

2 votes

How to solve this limit when direct substitution fails. Why do this work?

2 votes
Accepted

prove $\|v \|_{L^2} + \|v' \|_{L^2} \leq 2\|v \|_{H^1}$

2 votes
Accepted

weak solution is classical solution

2 votes

Solving a limit of $\frac{\ln(x)}{x-1}$ with taylor expansion

2 votes

Partial derivative of nabla operation

2 votes

How Isolate y from $a=\sqrt{(y^2+(a+x)^2)^3}$

2 votes
Accepted

Big O and equality

2 votes

Upper bound for the norm of convolutions: $\Vert f_1\ast\cdots\ast f_N\Vert_r\leq\Vert f_1\Vert_{p_1}\cdots\Vert f_N\Vert_{p_N}$

1 vote
Accepted

A practical method to determine if $f \in L^p(\mathbb{R})$

1 vote

Integral of floor function

1 vote
Accepted

Can you show me how to derive the following function?

1 vote

Local maximum and global maximum of $\sin$

1 vote
Accepted

Prove that convolution in linear time invariant systems is commutative

1 vote
Accepted

Application of Tonelli

1 vote
Accepted

Prove $\|v\|_{H^1(\Omega )}\leq C(\|f\|_{L^2(\Omega )}+\|v\|_{H^{1/2}(\partial \Omega )}+\|\partial _\nu v\|_{H^{-1/2}(\partial \Omega )})$

1 vote

Finding a strict Liapunov function

1 vote

Differential equation / Separable

1 vote

I want to find the limit of a specific function

1 vote

Understand $\delta $ function, why do me write $\int \delta (x)dx$ instead of $\int d\delta $ ? Since $\int \delta (x)dx$ should be $0$

1 vote

$i^{1/n}$ when $n \to \infty$

1 vote
Accepted

Solution of continuity equation

1 vote
Accepted

Shift sign $y=\frac x{|x|}$ function horizontally