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15-09-2015
Mathematics

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If u = 8 + 4i and v = 3i + 6, then what is u – v?
a. 2+2i
b. 5-2i
c. 1+i
d. 2+i
e. 2-i

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Аноним Аноним

15-09-2015

[tex]u=8+4i\ and\ v=31+6\\\\u-v=(8+4i)-(3i+6)=8+4i-3i-6=(8-6)+(4i-3i)\\\\\huge\boxed{=2+i}\leftarrow \boxed{d}[/tex]

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