Complex and Imaginary Numbers Question Bank

What is i?

• 1

• -1

• √-1

• √1

Tags

CCSS.HSN.CN.A.1

Which of the is a complex number?

• 2

• 4i

• 3 + 5i

• All of them

• none of them

Tags

CCSS.HSN.CN.A.1

Simplify: i³¹

• i

• -i

• 1

• -1

Tags

CCSS.HSN.CN.A.2

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

• 10 - i

• 10 + 5i

• 6 + 5i

• 6 - i

Tags

CCSS.HSN.CN.A.2

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

• 22 - 28i

• 6 + 5i

• 6 - i

• 10 + i

Tags

CCSS.HSN.CN.A.2

Write in standard form: (5 + 3i)(5 - 3i)

• 34

• 16

• 25 - 30i + i²

• 24 - 30i

Tags

CCSS.HSN.CN.C.8

What is the conjugate of 5 - 2i?

• 5 + 2i

• -5 - 2i

• 5 - 2i

• -5 + 2i

Tags

CCSS.HSN.CN.A.3

• A
• B
• C
• D

Tags

CCSS.HSN.CN.A.3

√-36

• 6
• -6
• -6i
• 6i

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.1