Absolute Value of Complex numbers (Mini-Lesson)

Presentation

•

Mathematics

•

9th - 12th Grade

•

Medium

•

CCSS

HSN.CN.B.6

Standards-aligned

Jesus Molina

Used 3+ times

FREE Resource

3 Slides • 6 Questions

Absolute Value of Complex numbers (Mini-Lesson)

By Jesus Molina

The Modulus of a Complex Number

Multiple Choice

Find $\left|3\ -\ 2i\right|$

$\sqrt{13}$

Multiple Choice

$\left|a+bi\right|$ is defined as:

$\sqrt{a^2+b^2}$

$\sqrt{a^2-b^2}$

$\sqrt{a^2+\left(bi\right)^2}$

$\sqrt{a^2-\left(bi\right)^2}$

Multiple Select

Choose all that apply. Find $\left|6+8i\right|$

$\sqrt{\left(6\right)^2-\left(8i\right)^2}$

$\sqrt{\left(6\right)^2+\left(8\right)^2}$

10i

Multiple Choice

Find $\left|\frac{2-i}{3i}\right|$

-3

$\frac{\sqrt{5}}{3}$

Multiple Choice

Find $\left|\frac{5+2i}{5-2i}\right|$

-1

-i

Multiple Choice

$\left|\frac{2}{\left(-4+12i\right)}\cdot\frac{\left(-1+3i\right)}{1}\right|$

what is the absolute value?

$\frac{1}{2}$

$\frac{80}{160}$

$\frac{8}{16}$

$\frac{2}{4}$

Absolute Value of Complex numbers (Mini-Lesson)

By Jesus Molina

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