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1. a) Let: z=rcis(t). Enter an argument of -z. b) Let:z1=4cis(3π/4) and z2=2cis(π/3). Calculate z1*(/z2) in...

1.
a) Let: z=rcis(t). Enter an argument of -z.

b) Let:z1=4cis(3π/4) and z2=2cis(π/3).
Calculate z1*(/z2) in polar form. Find its modulus and principle argument. Calculate (z1/z2) in polar form. Find its modulus and principle argument.

where /z2: the conjugate of z2
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