Operations and Powers with Complex Numbers

What does i² = ?

• 1

• √-1

• -1

• -√1

Tags

CCSS.HSN.CN.A.1

What is the "real part" of the complex number (-4-3i)?

• -4

• 4

• -3i

• 3i

Tags

CCSS.HSN.CN.A.1

Simplify i³⁸

• 1

• i

• -i

• -1

Tags

CCSS.HSN.CN.A.2

Multiply: 
(4 – 3i)(7 + 2i)

•  22 - 13i

•  28 - 19i

•  34 - 13i

•   -34 - 29i

Tags

CCSS.HSN.CN.A.2

• 1

• -i

• i

• -1

Tags

CCSS.HSN.CN.A.1

• 1

• i

• -1

• -i

Tags

CCSS.HSN.CN.A.2

• i

• 4

• 1

• -1

Tags

CCSS.HSN.CN.A.2

• 0

• -i

• 1

• i

Tags

CCSS.HSN.CN.A.2

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

• 2

• -2

• 7i

• -7i

Tags

CCSS.HSN.CN.A.1

Use the powers of i to simplify i⁹⁷

• 1

• -1

• -i

• i

Tags

CCSS.HSN.CN.A.2