Please please please please help me. ❤❤❤❤❤❤
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rosia56:
Nexus
You are from south korea ??
nope
yes
i am from mars
i am from south korea
ohh
yes
what is south korea
In South Korea in which state or city you stay
Answers
Answered by
4
z-1 = x-1 - iy
|z-1| = √( x-1)^2 + y^2
= √( x^2 + 1 - 2x + y^2)
= √( x^2 + y^2 - 2x +1)
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