Equations Involving Complex Numbers

Simplify 
√-25

• -5i

• 5

• 5i

• -5

√-108

• 3i√6

• 3i√20

• 6i√3

• 20i√3

i⁷

• i

• -i

• 1

• -1

i⁶⁶

• 1

• i

• -1

• -i

Lisa wants to buy two new dresses from the mall. If one dress costs (59 - 6i) and the other costs (34 + 17i), how much money will she need to bring to the mall?

• 82 dollars

• 93 + 11i dollars

• 93 - 23i dollars

• 25 - 23i dollars

If z=√2+√2 i then arg(z²)=

• 0^o

• 60^o

• 90^o

• Not Possible

3+√-4

• 1

• 3-2i

• 5

• 3+2i

i⁷⁹

• i

• 1

• -1

• -i

i⁵²

• i

• -i

• 1

• -1