Imaginary Numbers

• 10
• -10
• 10i
• -10i

What is the complex conjugate of  4-3i?

• A.  1/(4-3i)
• B. 1/(4+3i)
• C.  -4 + 3i
• D.  4 + 3i

Tags

CCSS.HSN.CN.A.3

Simplify:
i⁷

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.1

Solve
3x² - 5 = -446

• ±√-147
• 7i√3
• ±7i√3
• -7√3

Tags

CCSS.8.EE.A.2

• 
• 
• 
• 

Tags

CCSS.HSN.CN.A.3

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

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

Tags

CCSS.HSN.CN.A.2

The expression (2 + 3i)² is equal to

• -5
• -5 + 12i
• 13
• 13 + 12i

Tags

CCSS.HSN.CN.C.8

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

• 2-19i

• 23-i

• 34+5i

• 23-i

Tags

CCSS.HSN.CN.A.2

Simplify.

• 
• 
• 
• 

Simplify   i²³

• i
• -1
• 1
• -i

Tags

CCSS.HSN.CN.A.2