If power is 0, anwser is always 1
2 0 = 1
3 0 = 1
1000 0 = 1
How did we get it?
We write
2 0 = 2 1 − 1
= 2 1 × 2 −1
= 2 × 1/2
= 2/2
= 1
Similarly, we can prove this for any number
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