Complex Numbers Review (Int 3)

i⁷

• i

• -i

• 1

• -1

i⁵²

• i

• -i

• 1

• -1

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i

• 7 + 9i

• 1 + 9i

• -1 + 5i

Simplify:
-3i(4 + 2i)

• 6 - 12i

• 6 + 12i

• -12i - 6i²

• -12i + 6i²

Simplify:
(2 - 3i)(5 + 4i)

• 22 - 7i

• 22 + 7i

• 22 - 7i²

• 22 + 7i²

• 10

• -10

• 10i

• -10i

What is the complex conjugate of  4-3i?

• A.  1/(4-3i)

• B. 1/(4+3i)

• C.  -4 + 3i

• D.  4 + 3i

Where is point B located?

• 2 + i

• -3

• 2i

• -1 - i

Where is point C located?

• 2 + i

• -3

• 2i

• -1 - i

What does i² equal?

• -1

• √-1

• 1

• -√1