Sep 9, 2025 · Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows Server 2022. Security Improvements There are no new security …

I have an assignment question that says "Express $\sin 4\theta$ by formulae involving $\sin$ and $\cos$ and its powers." I'm told that $\sin 2\theta = 2 \sin\theta \cos\theta$ but I don't know …

Oct 14, 2025 · PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance …

In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical …

Oct 14, 2025 · With System Restore you can revert your PC's state to a previous point in time. This can be particularly useful when troubleshooting issues caused by recent changes, such …

I know some nice ways to prove that $\\zeta(2) = \\sum_{n=1}^{\\infty} \\frac{1}{n^2} = \\pi^2/6$. For example, see Robin Chapman's list or the answers to the question "Different methods to …

Jul 8, 2025 · The April 22, 2025 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and …

Closed 7 years ago. I am trying to evaluate the integral $$\int \frac {1} {1+x^4} \mathrm dx.$$ The integrand $\frac {1} {1+x^4}$ is a rational function (quotient of two polynomials), so I could …

Jul 8, 2025 · 5062068 Description of the Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1809 and Windows Server 2019 (KB5062068) How to get this update

Q&A for people studying math at any level and professionals in related fields