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22-05-2020
Mathematics

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what is the value of 5^3i^9

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sqdancefan sqdancefan

25-05-2020

Answer:

125i

Step-by-step explanation:

Assuming your i = √-1, this is ...

(5^3)(i^9) = 125(√((-1)^9)) = 125√-1 = 125i

_____

i^n ≡ i^(n mod 4)

i^9 ≡ i^1 = i

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