Complex Numbers

Simplify

• 10

• -10

• 10i

• -10i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

What is the conjugate of 4-3i?

• A. 1/(4-3i)

• B. 1/(4+3i)

• C. -4 + 3i

• D. 4 + 3i

Tags

CCSS.HSN.CN.A.3

CCSS.HSN.CN.B.5

Simplify:
i⁷

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.2

Solve:

3x² - 5 = -446

(Simplify your answer)

• ±√-147

• 7i√3

• ±7i√3

• -7√3

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.C.7

Simplify:
√-108

• 3i√6
• 3i√20
• 6i√3
• 20i√3

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

Add:

(5-2i) + (-7+8i)

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

Tags

CCSS.HSN.CN.A.2

Multiply:

3i(-2+4i)

• -6+12i

• -12-6i

• -2+7i

• 12+6i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Multiply: 
(4 – 3i)(-7 – 2i)

• A.  -23 + 13i
• B.  -23 - 29i
• C.  -34 + 13i
• D.  -34 - 29i

Tags

CCSS.HSA.APR.A.1

Simplify
(-6 - 2i)²

• 32
• 36-4i
• 36+24i
• 32+24i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify:

√-4

• -2

• -2i

• 2

• 2i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2