Question

z1=2, 5andz2=-1, 4findthez1/z2​

Answer 1

Answer:

Given, z

1

=2−i and z

2

=1+i

Then,

∣

∣

∣

∣

∣

z

1

−z

2

+i

z

1

+z

2

+1

∣

∣

∣

∣

∣

=

∣

∣

∣

∣

∣

2−i−1−i+i

2−i+1+i+1

∣

∣

∣

∣

∣

=

∣

∣

∣

∣

∣

(1−i)

4

×

(1+i)

(1+i)

∣

∣

∣

∣

∣

=

∣

∣

∣

∣

∣

2

4(1+i)

∣

∣

∣

∣

∣

=∣2+2i∣

=

(2)

2

+(2)

2

=

8

=2

2

Answer 2

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