Concepts in complex numbers

Match the point in polar coordinates with either A, B, C, or D on the graph.
(2, -11π/6)

• A
• B
• C
• D

Convert the rectangular coordinates to polar coordinates
(6√3, 6)

• (12, π/6)
• (6, 7π/6)
• (6, π/6)
• (12, 7π/6)

Which point represents (-4, 4π/3)

• F
• E
• B
• A

Convert  5√3 - 5i  to Polar (cis) Form.

• √40 cis(11π/6)
• 10 cis(π/6)
• 10 cis(11π/6)
• √40 cis(-π/6)

How do you write an ordered pair in polar coordinates?

• (X, Y)

• (θ, r)

• (r,θ)

• (u W u)

How do you write an ordered pair in polar form?

• (x,y)

• (θ, r)

• (r,θ)

• (r,y)

Find three additional representations of the given polar coordinates using -2π<θ<2π. Choose all that apply.

• (3,-5π/6)

• (-3,π/6)

• (-3,-11π/6)

• (3,5π/6)

• (-3,-7π/6)

Write the complex number in modulus argument form

• √50 (cos π/2 + i sin π/2)

• 50 (cos π/4 + i sin π/4)

• √50 (cos 5π/4 + i sin 5π/4)

• √50 (cos π/4 + i sin π/4)