Complex Numbers and Operations

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

• 7 + 7i

• 1 - 3i

• 1 - 7i

• 7 - 3i

What is the complex conjugate of  4-3i?

•   1/(4-3i)

• 1/(4+3i)

•   -4 + 3i

•   4 + 3i

(3 - 3i)(5 - 7i)

• -6 - 36i

• 36 + 6i

• -6 + 36i

• 10
• -10
• 10i
• -10i

√-36

• 6

• -6

• -6i

• 6i

How do you write a complex number?

• a-bi

• a+bi

• ai+b

• ai-b

• -5i

• 5

• 5i

• -5

What is the conjugate of

5 + 6i

• 5 + 6i

• 11i

• -11i

• 5 - 6i

What is the conjugate of

• 1 + 5i

• 6i

• -6i

• -1 + 5i

(4 - 2i) - (3 + 6i)

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i