Complex Number Problem #1

I’ve come across many questions from students regarding complex numbers, and here is one thats quite fun to deal with!


Now this is really interesting, but can be solved with a bit of manipulation. We all know this is akin to i^i

We know that \sqrt{-1}=e^{i\frac{\pi}{2}}


= e^{i\frac{\pi}{2}\sqrt{-1}}

= e^{i\frac{\pi}{2}i}

= e^{i^2\frac{\pi}{2}}

= e^{-\frac{\pi}{2}}

Now our end result is a real number!

Like mentioned with regards to Euler’s Identity, it is really very amazing how complex numbers actually work!

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