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

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

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

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

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

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

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

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

A) 0
B) √ 5
C) 2√5
D) √30

A) 2π/3
B) π/3
C) 5π/3
D) -π/6

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

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

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

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

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

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

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

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

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