Unit 2 Exam: Complex Numbers

3+√-4

• 1

• 3-2i

• 5

• 3+2i

Tags

CCSS.HSN.CN.A.1

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSN.CN.A.2

(1-3i)(2+5i)

• 22-i
• 16-i
• 17-i

Tags

CCSS.HSN.CN.A.2

3i + 2i

• 5i
• 5i²
• 6i
• -5

Tags

CCSS.HSN.CN.A.2

(2i)(3i)

• 5i
• -5
• 6i
• -6

Tags

CCSS.HSN.CN.A.2

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSN.CN.A.2

Solve.
4x² - 7 = -10

• x = ± (3i)/2
• x = ± (i√3)/2
• x = ± (i√3)/4
• x = ± (i√6)/4

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

• 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