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

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

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

blahblah_who_caresBest ResponseYou've already chosen the best response.0
oh 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?
 one year ago

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