A) All of the choices
B) The imaginary number part of it is the square root of the negative number.
C) the symbol j and i denotes same value
D) It contains both real and imaginary number.

A) 15
B) rcis30
C) All of the choices are considered
D) 2+3i

A) 7 +12i
B) 7 - 12i
C) 1 + 2i
D) -1 +2i

A) polar form
B) rectangular form
C) exponential form
D) trigonometric form

A) e^0.54i
B) 5.83∠30.96°
C) all of the choices
D) 5.83cis0.54 rad

A) -1
B) 1
C) i
D) -i

A) 7 +12i
B) -1 +2i
C) 7 - 12i
D) 1 + 2i

A) -0.4 + 1.8i
B) 37-3i
C) 37 +3i
D) 0.4 - 1.8i

A) 2√5
B) 0
C) √30
D) √ 5

A) π/3
B) -π/6
C) 2π/3
D) 5π/3

A) 0.93
B) 0.93
C) 5.35
D) 2.22

A) all of the choices are considered
B) 3e^-1.571i
C) -3i
D) 3∠90

A) 16.58e^0.761i
B) all of the choices are considered
C) 12.01+11.43i
D) 16.58∠43.60°

A) 5.12-19.12i
B) 14√2 ∠75°
C) -5.12+19.12i
D) 14√2 ∠-75°

A) None of the choices are correc
B) 1-2i
C) 2.236 ∠-63.43°
D) 2.24e^-5.176i

A) -5.47 +1.47i
B) (-2-2√3)+(-2-2√3 i)
C) (2-2√3)+(-2-2√3 i)
D) +5.47 -1.47i

A) 12-3i
B) 4+8i
C) none of the choices
D) -8+4i

A) 20.30∠166.67
B) 4.68+19.75i
C) 20.30∠-76.67
D) 20.30 e^-1.34i

A) 4.6 e^0.374i
B) 4.6 ∠-338.55°
C) none of the choices
D) -4.25 + 1.67i

A) 2∠240°
B) 2∠0
C) 2∠120°
D) all of the choices are correct