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In $19-34,$ write each sum or difference in terms of $i$$$\sqrt{-100}+\sqrt{-81}$$

19$i$

Algebra

Chapter 5

QUADRATIC FUNCTIONS AND COMPLEX NUMBERS

Section 4

The Complex Numbers

Equations and Inequalities

Quadratic Functions

Complex Numbers

Polynomials

Oregon State University

McMaster University

Harvey Mudd College

University of Michigan - Ann Arbor

Lectures

01:32

In mathematics, the absolu…

01:11

00:58

In $19-34,$ write each sum…

02:10

00:44

00:39

01:09

01:24

01:33

03:33

In $3-18,$ write each numb…

Okay, so our next problem here does look a little scary, I'll admit. But don't worry, this is not as bad as it seems. So what we've got here is the square root of 0.2025 and that's plus a square root of negative 0.9. So when you look at these numbers this nine and this number here, you should think that they probably do have, uh you can take the perfect square root here, and you'd indeed can. So you pull out your calculator here, and you would find that the square root of this number here is a 0.45 and then plus, and I have my square with a one year, and you're going to use your calculator to find the perfect square of this 10.9. So this here is an eye, and this is a 0.3. So what I'm left with here is this. 0.45 plus a zero point three I

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