One of the math teachers asked me for a nice way to explain how to find . One of her students had asked her. What’s funny is that I distinctly remember coming up with this question when I was in high school, and I remembered my solution.
I’ll put it below in case any of you want to try to work it out.
Starting with Euler’s identity:
We note that
So raising both sides of the equation to the 1/2 power yields:
Of course this method will then let you find to any power!