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OpenStudy (anonymous):
What is i^486? (complex numbers)
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OpenStudy (ikram002p):
humm lets try to solve ^^
OpenStudy (ikram002p):
i=sqrt -1
OpenStudy (ikram002p):
i^2=-1 ok ?
OpenStudy (amoodarya):
hint : i^4=1 i^486= i^(4(121)+2)
OpenStudy (ikram002p):
@kristina95 ur here ? :P
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OpenStudy (anonymous):
so i^486 = (i^484)*(i^2) = 1*-1=-1 right?
OpenStudy (ikram002p):
i=sqrt -1 i^2=-1 486=2*243 i^2*243=i^2^243=(-1)^243 but 243 odd so i^486=-1 :D
OpenStudy (ikram002p):
yess ur right :D
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