And we’re gonna enter our P, Q points. All professors do things different, which I’m against in calculus. Well, I’m not too thrilled about calculus at all. We have p1 and p2 here, in most cases it’s P and Q points. You have to press alpha before you enter anything in these entry lines here. Alpha, the first one is minus 7. There it is. Alpha minus 9. 7 is the P point. These are point on the outside of a sphere, and they give you two points are you’re supposed to find the radius. And different types of things. Not easy. Even if you know the formula it is not easy, you’re gonna mess up on the minus signs or whatever. That’s why the program steps up so you don’t mess up, and I didn’t mess up. The Q point is Alpha 0, Alpha 1. Alpha 1 for the Z point. I always show you what you’ve entered you can change it if you want. I say it looks pretty good. And we’re gonna choose equation, standard equation, number 5. There’s the formula. And you have to find the xo, yo, zo first Which is this system here. That equals this. Standard equation that is these entered into the equation. Here’s the standard equation. Pretty neat, huh? Everystepcalculus.com. Now I noticed, with the minus in minus, you might have to think in life a little bit, so you might have to say, oh there’s a minus and minus, minus times a minus is a plus. So you might put on your paper, x plus 7, over 2. Or same thing with y. Y equals minus, minus a minus, which is equal to a plus. Which would be y plus 4, and this would be z plus 4. So, keep that in mind. Have a good one. Everystepcalculus.com, go to my site, buy my program if you want to pass calculus. Subscribe if you want to see more movies from me. Thanks and have a good one.

We’re gonna do some calculations in a sphere. This is generally calculus three. And we’re gonna find the midpoint, or center, of a sphere. Index 8 to get to my menu. You can scroll up to get to the bottom of the menu so you can get to the S section quicker. You can press second and the cursor here to get screen by screen instead of one click like I’m doing. This is a simulator. Now we’re gonna choose here, center and midpoint. We’re gonna enter our P and Q points pressing Alpha first. Alpha 5. minus 2 Alpha 3 The Q point is Alpha 0, Alpha 4

Alpha minus 3. Now we gotta go back and change them. Alpha 5 Alpha minus 2 Alpha 3 Alpha 0 Alpha 4. And Alpha minus 3. I always show you what you’ve entered, you can change it if you want, which we just did. Say it’s okay. Now I’m gonna press number 1. Number 3 for midpoint Here’s the calculations: xo, yo, zo. And the answer. Everystepcalculus.com, go to my site buy my programs if you want to pass calculus.

And also subscribe so you can see other videos I might make. Hey have a good one.