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If z1= 6cis(π/3) and z2= 3cis(-π/4), what is the quotient of z1 and z2 in polar form?
-2 cis(7π/12)
cis(π/12)
2cis(7π/12)
If z=3cis(π/7), what is the reciprocal of z in polar form?
Cis(-π/7)/3
Cis(π/7) /3
-Cis(-π/7)/3
When finding the reciprocal of a complex number z in polar form, what happens to the magnitude of the reciprocal of z?
It is added
It is subtracted
It is divided by magnitude of z
In polar form, if the reciprocal of a complex number has an argument (angle) of zero, what can you say about the angle of the original complex number?
It remains the same
It becomes zero
It becomes π
If z=5cis(-π/2), what is the reciprocal of z in polar form?
Cis(π/2)/5
-Cis(π/2)/3
-Cis(-π/2)/3
If z1= 11cis(π/2) and z2= cis(π/6), what is the quotient of z1 and z2 in polar form?
11 cis(π/3)
Cis(π/3)
11cis(π/6)
When dividing complex numbers in polar form, what happens to their arguments (angles)?
They are added
They are subtracted
They are multiplied
If z1= 8cis(π/2) and z2= 2cis(-π/2), what is the quotient of z1 and z2 in polar form?
cis(π/2)4
cis(-π)
4cis(π)
What is the reciprocal of a complex number z = rcis(θ) in polar form?
(1/z) =cis (-θ)/r
(1/z) =cis (θ)/r
(1/z) =-cis (-θ)/r
What happens to the magnitude of the reciprocal of a complex number when the argument of the original complex number is π/2 in polar form?
The magnitude is added.
The magnitude is multiplied.
The magnitude of the reciprocal remains the same.
It is done.