Примери за използване на To r squared на Английски и техните преводи на Български
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Is equal to r squared.
We know that x squared plus y squared is equal to r squared.
So this is equal to r squared is equal to 9 times-- let's see, y over x.
That's 9 plus 16 is equal to r squared.
So 3 squared is equal to r squared. You could say r squared is equal to 9 and then r is equal to 3 because you can't have a negative radius.
Хората също превеждат
And that's going to be equal to r squared.
We learned in the last video that the equation of a circle is x squared anda circle centered at the origin. x squared plus y squared is equal to r squared.
Plus 1 squared is equal to r squared.
If we do some pattern matching, well x squared plusy squared we know that's equal to r squared.
The general form of an equation, or the general equation for a circle,is x squared plus y squared is equal to r squared, where r is the radius of the circle.
You remember that if a circle is centered at 0,the standard form would be x squared plus y squared is equal to r squared.
And we already say, well x squared plus y squared is equal to r squared.
We had figured out that x squared plus y squared is equal to r squared.
So 15 squared plus 20 squared is going to be equal to r squared.
So we could say, 3 squared plus 4 squared is equal to r squared.
Pythagorean Theorem, you get x squared plus y squared is equal to r squared.
Now, if we divide both sides of this equation by pi,we get 16 is equal to r squared.
Remember the original formula I just showed you. x squared plus y squared is equal to r squared.
If you have a circle centered at 0,its equation is x squared plus y squared is equal to r squared.
It says the point minus 3, 2 lies on a circle whose equation is x plus3 squared plus y plus 1 squared is equal to r squared.
So if we were to divide both sides of this by r squared, we would get-- and this is just little algebraic manipulation-- x squared over r squared plus y squared over r squared is equal to 1.
So all we have to do is substitute the x andthe y here and see what r squared has to be equal to.
Area is equal to pi r squared.
So we could just rewrite this. This r squared is equal to 4.
Kh 2pi sigma r dr over h squared plus r squared to the 3/2.
Or you could say the square root of r to the fourth is r squared.
R dr over h squared plus r squared to the 3/2, or we could think of it as the negative 3/2, right?
Squared plus 4 squared is equal to the hypotenuse squared, or r squared.
So this right here is r squared, so if r squared is equal to 9, than r is equal to 3.
That's r squared is equal to x-- sorry, is equal to y plus x.