Salmankhan

What is the nth number in the following sequence? Let's see. The first term here is a 6. So over here I'll put the term. So this is the number. I'll just write num there....

In this video, I want to familiarize you with the idea of a limit, which is a super important idea. It's really the idea that all of calculus is based upon. But despite being so super...

欢迎回来 上个视频的最后两分钟 我急着做完一个题 我知道那是非常不好的 因为我结束的匆匆忙忙 因此 这是我们要讲的问题 你会看到很多类似这样的 只是想让你熟悉 牛顿万有引力定律中的变量 我说过 有两个行星 一个是地球 我现在有时间 画一下这个 因此这是地球 然后有一个小地球 小地球 好 或许我还是叫它小行星吧 这样就不容易混淆了 它是绿色 也就是说在这个行星上可能有生物 假设它的半径是地球的1/2...

(music) Tom: From WBUR-Boston, I'm Tom Ashbrook and this is On Point. Salman Khan is one of the most influential teachers in the country. His short 12 minute video lectures are watched by more...

DAN SIMON (NARRATING): Sal Khan lives in California, outside of San Francisco. Sara Shadid, halfway around the globe in Dubai. Their lives are interconnected, but Khan doesn't know it. This is...

Welcome to the presentation on subtracting decimal numbers. Let's get started with some problems. The first problem I have here says 5.73 minus 0.0821 equals who knows? So the first thing you...

We have the equation 20 minus 7 times x is equal to 6 times x minus 6. And we need to solve for x. So the way I like to do these is we just like to separate the constant terms, which are the 20 and...

I just received this drug calculation problem from a nursing student, and I think it's essential that the nursing students out there are able to do this, just in case I'm the patient...

Welcome to the presentation on derivatives. I think you're going to find that this is when math starts to become a lot more fun than it was just a few topics ago. Well let's get...

On February 2, 2010 the U.S. Treasury estimated the national debt at 1.2278 times 10 to the 13th power. And just to get a sense of things, 1 times 10 to the sixth is a million, 1 times 10 to the ninth...