Solving Complex Numbers

(5 + 2i) + (4 - 5i) = ?

• 9 - 3i

• 9 + 7i

• 9 -7i

• 9 - 10i

Tags

CCSS.HSN.CN.A.2

Find the sum: (3 + 2i) + (4 - 5i)

• 7 + 7i

• 1 - 3i

• 1 - 7i

• 7 - 3i

Tags

CCSS.HSN.CN.A.2

Find the difference: (4 - 2i) - (3 + 6i)

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

Tags

CCSS.HSN.CN.A.2

Find the product: (3 + 8i)(-2 - i)

• 2 - 19i

• 23 - i

• 34 + 5i

• 23 - i

Tags

CCSS.HSN.CN.A.2

Tags

CCSS.HSN.CN.A.2

Lisa wants to buy two new dresses from the mall. If one dress costs (59 - 6i) and the other costs (34 + 17i), how much money will she need to bring to the mall?

• 82 dollars

• 93 + 11i dollars

• 93 - 23i dollars

• 25 - 23i dollars

Tags

CCSS.HSN.CN.A.2

Which of the following is equivalent to 
(5-3i)+(-6+2i)?

• -1-5i

• -1-i

• 11-i

• -30-6i

Tags

CCSS.HSN.CN.A.2

(−3 − i) + 6 + (2 − 6i)

• 5 − 7i

• 1 + 5i

• 2 − i

• 5 + 7i

Tags

CCSS.HSN.CN.A.2

(1 -i) + (-1 + i)

• 2 - 3i

• 3 - 2i

• 2 + 3i

• 0

Tags

CCSS.HSN.CN.A.2

If z=√2+√2 i then arg(z²)=

• 0^o

• 60^o

• 90^o

• Not Possible

Tags

CCSS.HSN.CN.B.4