Working Backwards with Complex Numbers

_______________ of a complex number is found by reversing the algebraic sign of the complex numbers imaginary number only while keeping the algebraic sign of the real number the same.

Tags

CCSS.HSN.CN.A.3

What complex number is represented by the graph?

• -3-i
• -3+i
• 1+3i
• 1-3i

Tags

CCSS.HSN.CN.B.4

• 15

• -15

• 15i

• -15i 

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CCSS.HSN.CN.A.2

• A
• B
• C
• D

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CCSS.HSN.CN.A.3

Express 2 cis (4π/3) in the form x + yi

Tags

CCSS.HSN.CN.B.4

Express z = 1-i in polar form

• r = sqrt(2), theta = -45 degrees
• r = sqrt(2), theta = 45 degrees
• r = 2, theta = -45 degrees
• r = 2, theta = 45 degrees

Answer explanation

Tags

CCSS.HSN.CN.B.4

Tags

CCSS.HSN.CN.B.4

Write the complex number in Polar Form. Express the argument:    6+0i

Answer explanation

Tags

CCSS.HSN.CN.B.4

Tags

CCSS.HSN.CN.A.3