Qualification > Math

Argand Diagrams - URGENT HELP!

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Tammet:
Hello again.

Draw |z-u| = 1. I did that perfectly, It's a circle center u (1+i) and radius=1.

The next part says: Using your diagram, calculate the least value of |z| for the
points on this locus. Can anyone tell me how to do that please.

P3.November2oo6.Question9

Thanks~

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