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

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

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

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

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

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

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

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

A) 2√5
B) 0
C) √ 5
D) √30

A) π/3
B) -π/6
C) 2π/3
D) 5π/3

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

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

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

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

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

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

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

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

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

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