Answer:

Step-by-step explanation:
First, recall the 4 basic imaginary exponents:

So, we want to find:

This is the same as:

52 is 4 times 13. Thus:

Since we know that i to the fourth is 1:

Simplify:

And this equals:

So:

<em>The</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>4</em><em>/</em><em>9</em>
<em>please</em><em> </em><em>see</em><em> the</em><em> attached</em><em> </em><em>picture</em><em> for</em><em> full</em><em> solution</em>
<em>H</em><em>ope</em><em> it</em><em> helps</em>
<em>G</em><em>ood</em><em> luck</em><em> on</em><em> your</em><em> assignment</em>
The spread of data is A 15 to 30 years