Thursday, 28 March 2019

geometry - Formula to calculate a square root

I already know about the relation between a circle and the square root of a certain number. It looks like this
, where b=x and is actually very interesting. I wanted to check if I could take the image, and basically "write it down" in math form to come up with a, maybe useless, formula for the square root of x. The one I came up with isx=(x+1)sin(arccos(x1x+1))2 Now this formula is kinda long, and I want to know if, first of all, it is correct, and also if there is any possible way to simplify it without using a square root to achieve this, because that would be contradictory.

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real analysis - How to find limhrightarrow0fracsin(ha)h

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