Find Fourier Series of the function $f(x)= \sin x \cos(2x) $
135967
What is the odd Fourier extension of $\sin x \cos(2x)$?
34060
Laurent Series of $f(z) = \sin {\frac{1}{z}}$ at $z=0$
16049
Fourier transform of $\int_{-\infty}^{t}f(t)\, dt$
131310
Evaluating $\dfrac{1}{\sin(2x)} + \dfrac{1}{\sin(4x)} + \dfrac{1}{\sin(8x)} + \dfrac{1}{\sin(16x)}$
150928
Summation of a trigonometric series - $\frac{\sin n}{n}$
116270
Functional equations leading to sine and cosine
6465
How to prove periodicity of $\sin(x)$ or $\cos(x)$ starting from the Taylor series expansion?
129734
Computing $\sum_{k=1}^{\infty}\frac{1}{k}\int_{\pi k}^{\infty}\frac{\sin(x)}{x}dx$
11744
Maximum and minimum of $f(x)=\cos(\sin(x))-\sin(\cos(x))$
122843
Finding $\int_0^\infty \frac{\cos(ax)-\cos(bx)}{x}dx$
122705
Solution of trigonometric equation $0 = x\cos(x)+2$
97418
Fourier Transform of Derivative
97942
Given a Fourier series $f(x)$: What's the difference between the value the expansion takes for given $x$ and the value it converges to for given $x$?
148940
$\sum_{n=1}^\infty\frac1{n^6}=\frac{\pi^6}{945}$ by Fourier series of $x^2$
42424
Riemann sum of $\sin(x)$
40235
How would I differentiate $\sin{x}^{\cos{x}}?$
98933
Calculating the sum of $f(x) = \sum_{n=0}^{\infty} {n \cdot 2^n \cdot x^n}$