Complex Numbers and Conjugates

(7-5i)(7+5i)

• 74
• 75
• 74-1

Tags

CCSS.HSN.CN.C.8

What is the complex conjugate of  4-3i?

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

Tags

CCSS.HSN.CN.A.3

What is the conjugate of 2 + √3i

• 2 + √3i

• 2 - √3 i

• -2 + √3 i

• -2 - √3 i

Tags

CCSS.HSN.CN.A.3

What is the conjugate of -8i?

• -8i
• 8i

Tags

CCSS.HSN.CN.A.3

What is the conjugate of i + 4?

• i + 4

• i - 4

• -i-4

• -i+4

Tags

CCSS.HSN.CN.A.3

What is the conjugate of -7 + 3i?

• -7 - 3i

• -7 + 3i

• 7 -3i

• 7 + 3i

Tags

CCSS.HSN.CN.A.3

What is the conjugate of -4i - 6?

• -4i + 6
• 4i + 6
• -6 + 4i
• -6 - 4i

Tags

CCSS.HSN.CN.A.3

What is the conjugate of -2i + 7

• -2i - 7
• 2i - 7
• -7 + 2i
• 7 + 2i

Tags

CCSS.HSN.CN.A.3

What is the standard form for a complex number?

• -8i
• a + bi
• bi + a
• -8i + 8

Tags

CCSS.HSN.CN.A.1

(4-5i)(4+5i)

• 41
• -9
• 41+40i
• -9+40i

Tags

CCSS.HSN.CN.C.8