SOLUTION: what is the value of i+56i^9

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Question 86641: what is the value of i+56i^9
Answer by dolly(163) About Me  (Show Source):
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i+56i^9
= i + 56 i^8 * i
= i + 56 (i^2)^4 * i
= i + 56 (-1)^4 *i [as i^2 = -1]
= i + 56(1)*i
= i + 56i
= 57i