Complex Numbers Quiz

Simplify the product of (3 + 2i) and (4 - 5i).

• 22 - 7i

• -22 - 7i

• 22 + 7i

• -22 + 7i

Calculate the product of (-2 + 3i) and (-1 - 4i).

• -14 - 5i

• 14 - 5i

• 14 + 5i

• -14 + 5i

Find the product of (5 + 6i) and (2 - i).

• 16 + 7i

• 17 + 5i

• 10 + 5i

• 12 + 3i

Simplify the product of (-3 + 4i) and (1 + 2i).

• -11 + 2i

• 11 + 2i

• -11 + 4i

• -11 - 2i

Find the complex conjugate of (2 - 5i).

• 2 - 5i

• -2 + 5i

• 2 + 5i

• -2 - 5i

• 5 - 2i

Calculate the complex conjugate of (-3 + 4i).

• 3 - 4i

• -3 - 4i

• -3 + 4i

• 3 + 4i

(-2 + 7i)(-2 + 2i)

• -10 + 8i
• -10 - 18i
• 18 - 10i
• -18 - 10i

Simplify

• (-10+6i)/17

• (1+50i)/61

• (-23+36i)/25

• (-21+33i)/34

What does i² = ?

• -1
• √-1
• 1
• -√1

Simplify: -4 (13 + 5i)

• -52 − 20i

• 9 + i

• 17 − 20i

• -52 + 20i