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Question

If z1=2i,z2=1+i, find z1+z2+1z1+z2+i.

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Solution

Given,z1=2i,z2=1+i.
Now,
z1+z2+1z1+z2+i
=|z1+z2+1||z1+z2+i| [ Using property of complex number]
=|4||3+i| [ Since z1+z2=3]
=410

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