Simplify using the imaginary number i i i − 20 \sqrt{-20} − 2 0 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

2 i 5 2i\sqrt{5} 2 i 5 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

− i 20 -i\sqrt{20} − i 2 0 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

Complex Numbers

Authored by Melissa Moore

Other

9th Grade

CCSS covered

Used 178+ times

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15 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

(3 + 2i) + (4 - 5i)

7 + 7i

1 - 3i

1 - 7i

7 - 3i

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

(4 - 2i) - (3 + 6i)

7 - 4i

1 + 4i

1 - 8i

7 - 8i

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does i² equal?

-1

√-1

-√1

Tags

CCSS.HSN.CN.A.1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The expression (2 + 3i)² is equal to

-5

-5 + 12i

13 + 12i

Tags

CCSS.HSN.CN.C.8

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(3 + 8i)(-2 - i)

2-19i

23-i

34+5i

23-i

Tags

CCSS.HSN.CN.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simplify

(-10+6i)/17

(1+50i)/61

(-23+36i)/25

(-21+33i)/34

Tags

CCSS.HSN.CN.A.3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

√-36

-6

-6i

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