A complex number can be expressed as a + bi. What does a represent?

depends on the sign of the number

the square root of the complex number

The complex conjugate can be found by...

Changing the sign of both a and b

If you are adding two complex numbers you should

add only the real numbers together and then add only the complex numbers together then stop

add all the numbers together then divide by 2

add only the real numbers and subtract the complex numbers

add only the complex numbers and subtract the real numbers

You can simplify powers of i by... (Choose all correct answers)

dividing the exponent by 4 then use the remainder to determine the value

multiplying the exponent by 3 and then subtracting 2

Like terms have ________.

the same variable at the same power

the same power but different variables

the same variable but different powers

Operations of Complex Numbers

Quiz

•

Mathematics

•

10th - 12th Grade

•

Practice Problem

•

Medium

•

CCSS

HSN.CN.A.2, HSN.CN.A.1, 6.EE.A.2B

+8

Standards-aligned

Stacey Karpowicz-Boring

Used 49+ times

FREE Resource

Tags

CCSS.HSN.CN.A.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5i

-5i

5+i

-5

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify.

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2

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Operations of Complex Numbers

30 questions

What does i² = ?

What is the "real part" of the complex number (-2+7i)?

What is the "imaginary part" of the complex number (-2+7i)?

Simplify i³⁷

Simplify i²⁴

Simplify.

$\left(\sqrt{25}-2i\right)+\left(-7+2\sqrt{-16}\right)$

Find the sum.
(5-2i) + (-7+8i)

What is the simplifies form of (11 - 7i) - (-3 + 12i)

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30 questions

What does i2 = ?

What is the "real part" of the complex number (-2+7i)?

What is the "imaginary part" of the complex number (-2+7i)?

Simplify i37

Simplify i24

Simplify.

(25−2i)+(−7+2−16)\left(\sqrt{25}-2i\right)+\left(-7+2\sqrt{-16}\right)(25​−2i)+(−7+2−16​)

Find the sum.(5-2i) + (-7+8i)

What is the simplifies form of (11 - 7i) - (-3 + 12i)

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What does i² = ?

Simplify i³⁷

Simplify i²⁴

$\left(\sqrt{25}-2i\right)+\left(-7+2\sqrt{-16}\right)$

Find the sum.
(5-2i) + (-7+8i)