Math 4 Unit 3 Review (complex #, Matrices and Vectors)

Find the Sum

3i + 2i

• 5i

• 5i²

• 6i

• -5

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CCSS.HSN.CN.A.2

Find the sum.

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

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

Tags

CCSS.HSN.CN.A.2

Tags

CCSS.HSN.CN.A.2

Simplify:

(10+ 15i) - (48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

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CCSS.HSN.CN.A.2

(2i)(3i)

• 5i

• -5

• 6i

• -6

Tags

CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2

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

• 2-19i

• 23-i

• 34+5i

• 23-i

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CCSS.HSN.CN.A.2

Tags

CCSS.HSN.CN.C.8

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.1

Simplify:
-3i(4 + 2i)

• 6 - 12i
• 6 + 12i
• -12i - 6i²
• -12i + 6i²

Tags

CCSS.HSN.CN.A.2