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<b>thus </b>2 <a href="series_1.html#K3">to_power</a> 2 = 
2 <a href="square_1.html#K5">^2</a> 
<b>by </b><i><a class="ref" href="power.html#T53">POWER:53</a></i>
<br/>.= 
4

;<br/>


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