Stack Exchange

Nikola Alfredi

India

$\displaystyle \lim_{Brain \rightarrow \infty }$ Looking beyond the boundaries.

Time is but a stubborn illusion - $ \mathit Albert \ Einstein $

top accounts reputation activity subscriptions

Top Questions

Infinite summation : $\displaystyle S= \sum_{r=0}^{\infty} \frac{\cos (2xr)}{4r^2 - 1}$

ordinary-differential-equations complex-numbers summation asked Mar 11, 2022 at 14:33

math.stackexchange.com

Solution to the $\displaystyle \phi'' + 4\phi' + 3\phi = x \cos {3x}. $

calculus integration ordinary-differential-equations asked Aug 6, 2021 at 17:15

math.stackexchange.com

7 digit number combinations

combinatorics divisibility asked Feb 27, 2020 at 16:40

math.stackexchange.com

Computing : $\displaystyle \int \frac {m + n\cos (x-x_0) }{ [a+b\cos (x-x_0)]^{3/2} } \mathrm{d}x $ with integration of $E$ and $F$

calculus integration definite-integrals elliptic-integrals cylindrical-coordinates asked Mar 23, 2022 at 8:27

math.stackexchange.com

Top Answers

Finding the range of $y =\frac{x^2+2x+4}{2x^2+4x+9}$ (and $y=\frac{\text{quadratic}}{\text{quadratic}}$ in general)

math.stackexchange.com