Satya Nadella on the journey to becoming Microsoft's CEO & reimagining technology's impact

Let H be the vertical distance between the graphs of f and g in region s. Find the rate at which H changes with respect to x when x is equal to 1.8. So, we have region s right over here. You can’t see it that well since I drew over it. What you see in re…

[Narrator] Acid rain sounds like something straight out of a sci-fi film, like strange raindrops that fall in a city and corrode everything. The truth is not far off, but the good news is that we know a lot about what causes acid rain and how to address i…

Though Oedipus would dodge death, vanquish the monstrous Sphinx, and weather wrathful plagues, the truth would prove his greatest challenger. When Oedipus’ mother, Queen Jocasta of Thebes, gave birth to him, a grim heir seized the occasion. Her husband, K…

[Music] [Music] What I want you all to do right now is to think of this mammal that I’m going to describe to you. The first thing I’m going to tell you about this mammal is that it is essential for our ecosystems to function correctly. If we remove this …

Hello grammarians. Hello Rosie. Hello Paige. Hi David. Hi David. Today all three of us are going to be talking about parallel structure. And I’ve always had trouble spelling the word “parallel,” but Rosie pointed out something just before we started reco…

As you can probably tell from my accent and from my grammar mistakes, I’m not a native English speaker. I became fluent in English by watching YouTube videos and practicing by myself, and I always get comments like, “I can understand you, but I cannot tal…