Complex Review

i¹³

• -1
• 1
• i
• -i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

i⁷

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify: 
(7 + 2i)(9 - 6i)

• 75-24i
• 63 - 24i  - 12i²
• 51 - 24i
• 58 + 60i

Tags

CCSS.HSA.APR.A.1

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10

Tags

CCSS.7.EE.A.1

Multiply
(2i)(3i)

• 5i
• -5
• 6i
• -6

Tags

CCSS.HSA.APR.A.1

What is the complex conjugate of  4-3i?

• A.  1/(4-3i)
• B. 1/(4+3i)
• C.  -4 + 3i
• D.  4 + 3i

Tags

CCSS.HSA.APR.A.1

Choose the answer that represents the rationalized complex number.

• (4-3i)/25
• 35/(16-9i)
• 20i/(4-3i)
• (3+4i)/5

Tags

CCSS.HSA.APR.A.1

Evaluate (9 + 3i) (9 - 3i). 

• 81 -9i
• 90
• 81 + 27i -9i²
• 81i - 9

Tags

CCSS.HSA.APR.A.1

Simplify.
(6 - 3i) + (1 + 8i)

• 9 + 5i
• 5 - 11i
• -5 + 5i
• 7 + 5i

Tags

CCSS.HSN.CN.A.2

Simplify.
(5 + 2i) - (-8 + 5i)

• 13 - 7i
• 10 + 2i
• 13 - 3i
• -3 + 7i

Tags

CCSS.HSN.CN.A.2