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Question

If z1=1+2i,z2=2+3i,z3=3+4i,provethatthenz1,z2andz3 are collinear.

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Solution

We have,

z1=1+2i

z2=2+3i

z3=3+4i


So,

We know that,

Mid point formula using

z2=z1+z32

2+3i=1+2i+3+412

2+3i=2+3i

Hence, this is the answer.


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