Safari Live - Day 368 | National Geographic

We’re told in the beginning of each episode of a certain game show. Each contestant picks a certain door out of three doors. Then the game show host randomly picks one of the two prize bundles. After each round, each contestant receives a prize based on t…

One two three [Music] four. Our stepmom, we did everything to hate her. She took us down to the edge of the theater. We saw the lion and the kangaroo. Take her down to the river where they call the wild. [Music] Alligator singing man overflow C the mudl o…

[Music] Hey! It’s me, Destin. Welcome back to Smarter Every Day. We are right in the middle of a huge experiment. It’s kind of like you walked in halfway through class. It’s cool, though. There’s a couple of videos you can watch and get caught up later. B…

So guys, this is some super like serious stuff. I mean, it’s really scary when you start to think about it, but all of my accounts have been hacked. Someone was able to get access to my YouTube channel, my social media accounts, all of my email accounts, …

What we’re going to do in this video is to start thinking about adding mixed numbers. Now, just as a reminder, what a mixed number is, it’d be something like 3 and 2⁄8. It’s called mixed because part of the way we represent this number is as a whole numbe…

So I have written here the formal definition for the partial derivative of a two-variable function with respect to X. What I want to do is build up to the formal definition of the directional derivative of that same function in the direction of some vecto…