29-10-2015
Mathematics

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what Is the.value of 5^3i^9

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Аноним Аноним

29-10-2015

[tex]5^3=5\cdot5\cdot5=125\\\\i=\sqrt{-1}\to i^2=-1\\\\i^9=i^8+1=i^8\cdot i^1=-1\cdot i=-i\\\\5^3i^9=125(-i)=\boxed{-125i}[/tex]

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zachdog23 zachdog23

18-11-2020

Answer:-125i

Step-by-step explanation:

I got it right on the test.

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