Simplifying Imaginary Numbers

Ms. Grant made up a game to help her class learn about imaginary numbers.  The winner will be the student whose expression is equivalent to – i.  Which expression will win the game?

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CCSS.HSN.CN.A.2

What is the greatest possible integral value of x for which  is an imaginary number?

• 5

• 6

• 3

• 4

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CCSS.HSN.CN.A.1

• 1

• -1

• i

• -i

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CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

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CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

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CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

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CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2