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0 Audio has been working on my system (dual-booted windows and linux) for a while, but yesterday it just randomly started saying "No output or input devices found." I have tried suggestions everywhere on the web but nothing works. If I run lspci I get: aayush@aayush-Satellite-L55-A:~$ lspci 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (...

2 $begingroup$ I'm trying to understand how the sandwich/ squeeze theorem establishes that $lim_{thetato 0}sintheta = 0$ and $lim_{thetato 0}costheta = 1$ . Mainly, i'm trying to understand this logic, rather than trying to answer an assignment question. calculus limits share | cite | improve this question edited 15 mins ago Asaf Karagila ♦ 305k 32 435 765 asked 3 hours ago James James 16 3 $e...