The Imaginary Number i

The Imaginary Number i

11th Grade

6 Qs

quiz-placeholder

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The Imaginary Number i

The Imaginary Number i

Assessment

Quiz

Mathematics

11th Grade

Medium

CCSS
HSN.CN.A.1, HSN.CN.A.2

Standards-aligned

Created by

Mrs. Burns

Used 2+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

i2

1

i

-1

-i

Tags

CCSS.HSN.CN.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The imaginary number  ii  is defined as

-1

 1\sqrt{-1}  

 4\sqrt{-4}  

 (1)2\left(-1\right)^2  

Tags

CCSS.HSN.CN.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify √-25

i√25
5i
-5i
25i

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify √-28

-√28
-2i√7
2i√7
28i

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Multiply: 
(4 – 3i)(-7 – 2i)

A.  -23 + 13i
B.  -23 - 29i
C.  -34 + 13i
D.  -34 - 29i

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

-2+6i
12+6i
-35-16i2
-35 -16i

Tags

CCSS.HSN.CN.A.2