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In $3-18,$ write each number in terms of $i$$$-\sqrt{-121}$$

$-11 i$

Algebra

Chapter 5

QUADRATIC FUNCTIONS AND COMPLEX NUMBERS

Section 4

The Complex Numbers

Equations and Inequalities

Quadratic Functions

Complex Numbers

Polynomials

McMaster University

Baylor University

University of Michigan - Ann Arbor

Lectures

01:32

In mathematics, the absolu…

01:11

01:23

In $3-18,$ write each numb…

01:44

00:33

00:27

00:44

00:41

01:10

the problem that we're working on is negative square root of negative 1 21 This negative over here is telling us that the answer to the problem is going to be a negative number. So it's going to always come along for the ride. The square root of negative 1 21 can be thought about as negative. Wanna times 1 21 the square root of we can think about this as two different pieces. Negative times the square root of negative one times the square root of 1 21 A square root of 1 21 is 11. The square root of negative one is the imaginary unit I and that negative comes along for the ride. Therefore, this answer is negative. 11. Hi.

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