What is the general rule to evaluate iN, where Nis any positive number?

In the definition of imaginary numbers i2 = -1
1) How can we evaluate i10 ?
2) How can we evaluate i34 ?
3) How can we evaluate i123 ?
4) What is the general rule to evaluate iN, where Nis any positive number?
On all the exercises show your work step-by-step. No work- No credit.

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