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 Sep1 answered Evaluation of $\sum_{n=1}^{\infty} \frac {x^{-n}}{n}$ Aug21 answered Integral of inverse of square root of a quadratic Aug20 asked How to integrate $\frac{1}{(x^3-a^3)^3}$ for a few limits Aug19 answered Evaluate $\int_2^4\frac{\sqrt{x^2-4}}{x^2}\mathrm dx$ Aug19 answered Is there any simple analytic method for solving $\sqrt{x}+y=7$ and $x+\sqrt{y}=11$ simultaneously. Aug17 answered How Matrix A is called $A^2=I$ Aug12 answered derivative $\nabla \frac{\mathbf{r}}{r^k}$ in the context of Geometric Calculus Aug4 answered Negative number modular positive number ? Jul26 answered Prove that $\small\sin x\sin y\sin(x-y) + \sin y \sin z \sin(y-z) + \sin z \sin x \sin(z-x) + \sin(x-y) \sin(y-z) \sin(z-x) = 0$. Jul13 answered Area of a Circle Inscribed in a Square Jul7 answered If $f(3) = 12$ and $f(2.8) = 12.6$. Then approximate $f'(3)$ Jun25 answered Integrate $\dfrac{\tan{3x}}{\cos{3x}}\mathrm{d}x$ Jun23 answered Having problems understanding function table Jun9 answered Simplify this expression involving Gamma function May31 answered $4 \sin 72^\circ \sin 36^\circ = \sqrt 5$ Apr28 answered How to find the integral for $\int 2^{\sin{x}}\cos{x}\;\mathrm{d}x$? Apr14 answered Rationalization of denominator with nth roots Feb11 asked How to prove that Fibonacci number is integer? Jan16 asked Definition of stability in the case of Levenberg-Marquardt optimization method Oct17 asked Can someone explain definition of number 1?