Introduction to Imaginary Numbers

Simplify

• 2i √10

• 2 √10

• 4i √10

• 4 √10

• -24i√7

• 24i√7

• -24√7

• 24√7

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CCSS.HSN.CN.A.1

Simplify

• ± 2i √10

• ± 2 √10

• ± 4i √10

• ± 4 √10

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

• 2

• -2

• 7i

• -7i

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CCSS.HSN.CN.A.1

Simplify:
(2 - 4i) + (5 + 6i)

• 7 + 2i

• 7 - 2i

• 7 + 2i²

• 7 - 2i²

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CCSS.HSN.CN.A.2

(4 − 7i) − (-3 + 6i)

• 7 − 13i

• 7 − i

• 1 − 13i

• 1 − i

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CCSS.HSN.CN.A.2

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i

• 7 + 9i

• 1 + 9i

• -1 + 5i

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CCSS.HSN.CN.A.2

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

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

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CCSS.HSN.CN.A.2

i⁷⁹

• i

• 1

• -1

• -i

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CCSS.HSN.CN.A.2

i¹³

• -1

• 1

• i

• -i

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CCSS.HSN.CN.A.2