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3.1 Introduction to Complex Numbers

Authored by Shawn Yepsen

Mathematics

10th Grade

CCSS covered

Used 25+ times

3.1 Introduction to Complex Numbers
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8 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Simplify  18\sqrt{-18}  

 3i23i\sqrt{2}  

 2i72i\sqrt{7}  

 63-6\sqrt{3}  

 8i108i\sqrt{10}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify 243\sqrt{243}  

 333\sqrt{3}  

 939\sqrt{3}  

 81381\sqrt{3}  

 3813\sqrt{81}  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Simplify  70\sqrt{-70}  

 i70i\sqrt{70}  

 7i107i\sqrt{10}  

 125-12\sqrt{5}  

 35-35  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Simplify

 100\sqrt{-100}  

 ±10\pm10  

 ±100i\pm100i  

 ±10i\pm10i  

 10i10i  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Solve:

 x216=0x^2-16=0  

4

-4

 ±4\pm4  

 ±4i\pm4i  

Tags

CCSS.HSA.REI.B.4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve:

 x2+25=0x^2+25=0  

5

-5

 ±5\pm5  

 ±5i\pm5i  

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.C.7

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve:

 2x2+72=02x^2+72=0  

 6i6i  

 ±6\pm6  

 ±6i\pm6i  

 6i26i\sqrt{2}  

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.C.7

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