Simplify i^8*9

$i^{8} \cdot 9$

Step 1

Rewrite $i^{8}$ as ${(i^{4})}^{2}$ .

${(i^{4})}^{2} \cdot 9$

Step 2

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

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

${({(i^{2})}^{2})}^{2} \cdot 9$

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

${({(- 1)}^{2})}^{2} \cdot 9$

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

$1^{2} \cdot 9$

$1^{2} \cdot 9$

Step 3

One to any power is one.

$1 \cdot 9$

Step 4

Multiply $9$ by $1$ .

$9$

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