Complex Numbers and Operations

What is the real part of the complex number 6 - 3i?

• -6

• 3

• -3

• 6

Tags

CCSS.HSN.CN.A.1

Simplify: -11 + 3i + 9 + 2i

• -20 + 5i

• -2 + 6i

• -2 + 5i

• -20 + 6i

Tags

CCSS.HSN.CN.A.2

Simplify: 4 + i + 7 - 5i

• 1 - 4i

• 1 + 4i

• 11 + 4i

• 11 - 4i

Tags

CCSS.HSN.CN.A.2

Simplify: 7 - 2i - (2 - 6i)

• 9 - 8i

• 9 + 8i

• 5 + 8i

• 5 - 8i

Tags

CCSS.HSN.CN.A.2

Simplify: 6i - 14 + i + 5 - 3i

• -9 + 4i

• -9 - 4i

• -19 + 4i

• -19 - 4i

Tags

CCSS.HSN.CN.A.2

Simplify: -i * (-2 + 10i)

• -10 + 2i

• 2 + 10i

• -2 + 10i

• 10 + 2i

Tags

CCSS.HSN.CN.A.2

Simplify: (2 - 3i) * (-5 - 3i)

• -10 - 14i

• -10 + 14i

• -22 - 14i

• -22 + 14i

Tags

CCSS.HSN.CN.A.2

Simplify: (1 + 7i) * (9 + 3i) - 4 - 2i

• -16 + 64i

• -16 - 64i

• 16 - 64i

• 16 + 64i

Tags

CCSS.HSN.CN.A.2

What is the product of the complex conjugates 8 + i and 8 - i?

• 62

• 63

• 64

• 65

Tags

CCSS.HSN.CN.C.8

What is the product of the complex conjugates 5 - 4i and 5 + 4i?

• 41

• 39

• 40

• 38

Tags

CCSS.HSN.CN.C.8