Solving Complex Numbers

Subtract: (2 + 3i) - (2 - 3i)

• 4 + 6i

• 6

• 13

• 6i

Tags

CCSS.HSN.CN.A.2

Multiply: (2 + 3i)(2 - 3i)

• 4 - 9i 

• 13

• 4 + 6i + 9i²

• 13 + 6i

Tags

CCSS.HSN.CN.C.8

Add: (13 + 2i) + (-13 + 9i)

• 11i

• 26 - 7i

• 169 + 14i

• Cannot be determined

Tags

CCSS.HSN.CN.A.2

Divide: (28+3i)÷(2+3i)

• 2+5i

• 1-3i

• 5+6i

• 5-8i

Tags

CCSS.HSN.CN.A.3

Divide: (12 + 18i) / (2 + 3i)

• - i

• + 5i

• 6

• - i

Tags

CCSS.HSN.CN.A.3

Q1. What is the value of x?

• A) 10

• B) -10

• C) 10i

• D) -10i

Simplify:
3√-81

• -27

• 3i√3

• 27i

• 9i

What is the complex conjugate of  4-3i?

•   1/(4-3i)

• 1/(4+3i)

•   -4 + 3i

•   4 + 3i

Tags

CCSS.HSN.CN.A.3

4+5i+6+6i

• 21i

• 20i+36

• 24+30i

• 10+11i

Tags

CCSS.HSN.CN.A.2

Where is point C located?

• 2 + i

• -3

• 2i

• -1 - i

Tags

CCSS.HSN.CN.B.4