Try it on paper first. A hint, the key idea and the worked solution are here when you need them.
Show the first eight powers of :
Show the value, then update it, in every round.
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, compare your working with the solution.
Plan. Start with power = 1. In every round, show it and then double it.
The eight values are .
Check. The last one is . The eight values are to .
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