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JamesJ
 one year ago
Best ResponseYou've already chosen the best response.2Well, \[ i^{7} = \frac{1}{i^7} \] What first is \[ i^7 = ... \]

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0which is i

JamesJ
 one year ago
Best ResponseYou've already chosen the best response.2correct. Now what is 1/(i)

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0oh wait. I think i know what i did wrong. its cause i forgot that i cannot be on the bottom of the equation. just to make sure. I believe the answer is i?

JamesJ
 one year ago
Best ResponseYou've already chosen the best response.2Yes, because you simplify complex fractions by multiplying by the conjugate of the denominator \[ \frac{1}{i} = \frac{1}{i}\frac{i}{i} = \frac{i}{1} = i \]
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