Imaginary Number

Simplify

• ± 4i √2

• ± 4 √2

• ± 2i √8

• ± 2 √8

Simplify

• ± 2i √10

• ± 2 √10

• ± 4i √10

• ± 4 √10

Simplify

• ± 6

• ± 6i

• ± √6i

• ± √6

Simplify

• ± 10i

• ± 10

• ± √10i

• ± √10

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

• 10
• -10
• 10i
• -10i

What is the value of x if x = 10?

• 10

• -10

• 10i

• -10i

Simplify

• 5i

• -5i

• ±5i

• ±

Simplify:
(3 + 2i) + (4i + 6)

• 9 + 6i

• 7i + 8

• 9 + 6i²

• 9 - 6i