Complex Numbers and Polar Coordinates

What is the conjugate of -2+5i?

• -5+2i
• -2-5i
• 2+5i
• 5-2i

Tags

CCSS.HSN.CN.A.3

Simplify:  (4+2i)/(3-i)

• 1-i
• 1+i
• 10+10i
• 1+10i

Tags

CCSS.HSA.APR.A.1

What complex number is represented by the graph?

• -3-i
• -3+i
• 1+3i
• 1-3i

Tags

CCSS.HSN.CN.B.4

Which are possible coordinates of the point graphed?

• (-2, 120^o)
• (-2, 60^o)
• (2, -120^o)
• (2, 60^o)

Tags

CCSS.HSN.CN.B.4

Convert the rectangular coordinate (0, -3) to polar coordinates.

• (3, -270^o)
• (3, 270^o)
• (-3, 270^o)
• Not Possible

Tags

CCSS.HSN.CN.B.4

The rectangular form of the complex number 12(cos315^o + i sin315^o) is...

• 6√2 + 6√2 i
• 6√2 - 6√2 i
• -6√2 + 6√2 i
• -6√2 - 6√2 i

Tags

CCSS.HSN.CN.B.4

Let w=-√3/2 + 1/2 i calculate the modulus and argument.

• 3, 120^o
• 5, 270^o
• 1, 150^o
• Not Possible

Tags

CCSS.HSN.CN.A.3

CCSS.HSN.CN.B.4

CCSS.HSN.CN.B.5

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 simplified form of the above?

• 7/10 + 11/10 i

• 13/10 +1/10 i

• 5/4 - 3/2i

• 7/10 - 11/10 i

Tags

CCSS.HSN.CN.A.3

Simplify

• (-10+6i)/17

• (1+50i)/61

• (-23+36i)/25

• (-21+33i)/34

Tags

CCSS.HSN.CN.A.3