a ✱ 1
Let's try out some variables for a using the formula a ^ (a ^ (b - 1)) as it becomes a ^ (a ^ (1 - 1)).
2 ✱ 1 = 2 ^ (2 ^ (1 - 1)) = 2 ^ (2 ^ 0) = 2 ^ 1 = 2 |
3 ✱ 1 = 3 ^ (3 ^ (1 - 1)) = 3 ^ (3 ^ 0) = 3 ^ 1 = 3 |
6 ✱ 1 = 6 ^ (6 ^ (1 - 1)) = 6 ^ (6 ^ 0) = 6 ^ 1 = 6 |
10 ✱ 1 = 10 ^ (10 ^ (1 - 1)) = 10 ^ (10 ^ 0) = 10 ^ 1 = 10 |
1,000 ✱ 1 = 1,000 ^ (1,000 ^ (1 - 1)) = 1,000 ^ (1,000 ^ 0) = 1,000 ^ 1 = 1,000 |
As you can see, a ✱ 1 = a in every case above.
So, then, what does 1 ✱ 1 yield? Let's find out:
1 ✱ 1 = 1 ^ (1 ^ (1 - 1)) = 1 ^ (1 ^ 0) = 1 ^ 1 = 1
As predicted, the answer is "1".
In the exponent rules, n⁰ = 1 (where n > 0), 1ⁿ = 1, and n¹ = n.
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