If i= square root of -1, what is the value of i 3?

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asked Aug 6, 2017 134k views

2 Answers

Rashidah · Answer 1 · 2017-08-07T08:47:59+0000

If i = √-1 ,

then ...

i² = (√-1)² = -1

i³ = - √-1 = -i <== the answer to the question

i⁴ = (i²) · (i²) = (-1) · (-1) = 1

and then the whole thing starts over again, for higher powers of i .

If i= square root of -1, what is the value of i 3?

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