Simplify i^57

$i^{57}$

Rewrite $i^{57}$ as ${(i^{4})}^{14} i$ .

Factor out $i^{56}$ .

$i^{56} i$

Rewrite $i^{56}$ as ${(i^{4})}^{14}$ .

${(i^{4})}^{14} i$

${(i^{4})}^{14} i$

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

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

${({(i^{2})}^{2})}^{14} i$

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

${({(- 1)}^{2})}^{14} i$

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

$1^{14} i$

$1^{14} i$

One to any power is one.

$1 i$

Multiply $i$ by $1$ .

$i$

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