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

User RDL
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2 Answers

7 votes

Answer:-125i

Explanation:

I got it right on the test.

User FJam
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5^3=5\cdot5\cdot5=125\\\\i=√(-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}
User Casey
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