Imaginary & Complex Numbers

i¹³

• -1

• 1

• i

• -i

i¹²⁹

• -i

• i

• 1

• -1

(2i)(3i)

Mathematical Equivalence

ON

(-3i)(i)(5i) (a)  

• 15i
• -15i
• -15i3
• 15i3

Simplify √-4 (a)  

• 2i
• -2i
• 2
• 4i

Simplify √-28

• -√28
• -2i√7
• 2i√7
• 28i

Simplify √-23 (a)  

• -√23
• 23i
• 23
• i√23

Simplify:

(10+ 15i) - (48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

Find the sum.
(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i