- #1
Proofrific
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I have two ways of evaluating [tex](e^{i 2 \pi}) ^{1/2}[/tex], and they give me different answers. Which one is correct, and why is the other wrong?
Method 1: [tex](e^{i 2 \pi}) ^{1/2} = e^{i \pi} = -1[/tex]
Method 2: [tex](e^{i 2 \pi}) ^{1/2} = 1^{1/2} = 1[/tex]
Method 1: [tex](e^{i 2 \pi}) ^{1/2} = e^{i \pi} = -1[/tex]
Method 2: [tex](e^{i 2 \pi}) ^{1/2} = 1^{1/2} = 1[/tex]