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Sep
1
answered Evaluation of $\sum_{n=1}^{\infty} \frac {x^{-n}}{n}$
Aug
21
answered Integral of inverse of square root of a quadratic
Aug
20
asked How to integrate $\frac{1}{(x^3-a^3)^3}$ for a few limits
Aug
19
answered Evaluate $\int_2^4\frac{\sqrt{x^2-4}}{x^2}\mathrm dx$
Aug
19
answered Is there any simple analytic method for solving $\sqrt{x}+y=7$ and $x+\sqrt{y}=11$ simultaneously.
Aug
17
answered How Matrix A is called $A^2=I$
Aug
12
answered derivative $\nabla \frac{\mathbf{r}}{r^k}$ in the context of Geometric Calculus
Aug
4
answered Negative number modular positive number ?
Jul
26
answered Prove that $\small\sin x\sin y\sin(x-y) + \sin y \sin z \sin(y-z) + \sin z \sin x \sin(z-x) + \sin(x-y) \sin(y-z) \sin(z-x) = 0$.
Jul
13
answered Area of a Circle Inscribed in a Square
Jul
7
answered If $f(3) = 12$ and $f(2.8) = 12.6$. Then approximate $f'(3)$
Jun
25
answered Integrate $\dfrac{\tan{3x}}{\cos{3x}}\mathrm{d}x$
Jun
23
answered Having problems understanding function table
Jun
9
answered Simplify this expression involving Gamma function
May
31
answered $4 \sin 72^\circ \sin 36^\circ = \sqrt 5$
Apr
28
answered How to find the integral for $\int 2^{\sin{x}}\cos{x}\;\mathrm{d}x$?
Apr
14
answered Rationalization of denominator with nth roots
Feb
11
asked How to prove that Fibonacci number is integer?
Jan
16
asked Definition of stability in the case of Levenberg-Marquardt optimization method
Oct
17
asked Can someone explain definition of number 1?