Simplify i^72 - MathMaster

$i^{72}$

Rewrite $i^{72}$ as ${(i^{4})}^{18}$ .

${(i^{4})}^{18}$

Rewrite $i^{4}$ as $1$ .

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Rewrite $i^{4}$ as ${(i^{2})}^{2}$ .

${({(i^{2})}^{2})}^{18}$

Rewrite $i^{2}$ as $- 1$ .

${({(- 1)}^{2})}^{18}$

Raise $- 1$ to the power of $2$ .

$1^{18}$

One to any power is one.

$1$

Simplify i^72

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