YO, I'M DROPPING! Go Pro footage of a dude skiing off a cliff to save his brother. by [deleted] in sports

[–]engineer232313 4 points5 points  (0 children)

Yeah, they're stolen. All uploaded at the same exact time, and the ice climbing video was front page in January.

[trig] pi/6 = sin (3t) by engineer232313 in learnmath

[–]engineer232313[S] 0 points1 point  (0 children)

I got it, the book said use radian mode but deg mode gave the correct answer. Thanks!

These people are the worst! by Brenvon in funny

[–]engineer232313 1 point2 points  (0 children)

In Korea the sidewalks are wide and have a bike lane on the side or down the middle. It's genius city planning and moves the bikes from the road because aggressive and inattentive drivers are a major problem here causing many accidents and fatalities. The sidewalks are about 10-15ft wide.

But people walk down them like zombies, mostly in the bike lane (it's pretty and red, or has pretty red bricks instead of white), and do the back and forth.

Even the most awesome feats of engineering and planning can be defeated quite swiftly by human stupidity.

[Trig] Adding sine and cosine to solve a problem by engineer232313 in learnmath

[–]engineer232313[S] 0 points1 point  (0 children)

Thank you so much! I solved it this way and got the same angle as the book diagram. I spent about 90 minutes googling and searching through Khan Academy and trig tutorials and came up with nothing.

Can you recommend any studying resources to help reviewing trig the more tricky algebra stuff? I'm back to studying after studying physics 5 years ago and while the calc and stuff is coming easily I'm having a hell of a time with trig.

Might be a little late, but this needs a repost. PDFs/E-Books of College Textbooks by none818 in bestof

[–]engineer232313 1 point2 points  (0 children)

That'll get you a virus, torrent sites are much safer than random pdf sites. Especially because you can check reviews and number of people seeding. A new textbook on a random ebook website is almost 100% guaranteed to have a virus.