# Valentin

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bio website weary-watcher.blogspot.co.uk location age 28 member for 2 years, 7 months seen Dec 14 at 18:06 profile views 296

 13 trigonometry with alternative parametrizations of the circle 10 Evaluate: $\int{\frac{x^{5}-x}{x^{8}+1}}\:dx$ 9 Different ways of computing $\sqrt{1+\sqrt{1+\sqrt{1+\cdots}}}$ 6 Residue theorem 5 Equilateral triangle geometric problem

# 3,154 Reputation

 +5 $\frac{dy}{dx}=1+\frac{2}{x+y}$ solution by an “integrating term” +10 solving a ODE with periodic boundary conditions +10 trigonometry with alternative parametrizations of the circle +10 What is $dx$ in integration?

# 5 Questions

 6 $f(m + f(n)) = f(f(m)) + f(n)$ 5 $\frac{dy}{dx}=1+\frac{2}{x+y}$ solution by an “integrating term” 4 $u''+\frac{4}{x+1}u'+\frac{2}{\left(x+1\right)^{2}}u=0$ variational solution 2 Square integrable gradient and equicontinuity 2 $\frac{dx}{dt}=-\lambda x +\epsilon x(t-a)$ series solution via Laplace method

# 68 Tags

 66 calculus × 31 17 geometry × 9 57 integration × 22 12 indefinite-integrals × 3 27 trigonometry × 6 10 triangle × 4 22 complex-analysis × 9 9 fibonacci-numbers × 2 21 differential-equations × 20 9 number-theory

# 6 Accounts

 Mathematics 3,154 rep 612 Area 51 176 rep 4 Physics 113 rep 3 Stack Overflow 105 rep 2 TeX - LaTeX 101 rep