Math With Imaginary Numbers

Using your calculator, evaluate i¹³

• -1

• 1

• i

• -i

Using your calculator, evaluate i^24

• -1

• 1

• i

• -i

• 10
• -10
• 10i
• -10i

What letter usually represent imaginary number?

• a

• i

• j

• x

• e

Answer explanation

What is the value of x if x = 10?

• 10

• -10

• 10i

• -10i

Using your calculator, evaluate i⁷

• -1

• 1

• i

• -i

Using your calculator, evaluate i²

• -1

• 1

• i

• -i

Multiply:

(4 – 3i)(–7 – 2i)

FYI - your calculator can do this one :)

• –23 + 13i

• –23 – 29i

• –34 + 13i

• –34 – 29i

What is the simplified form of (–9 + 5i) + (3 – 2i)

• –12 + 31i

• –6 + 3i

• –11 + 7i

• 5 – 3i

What is the simplifies form of (11 – 7i) – (–3 + 12i)

• 8 – 19i

• 8 + 5i

• 13 – 19i

• 14 –19i