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Given point A,B,C, create three ellipses by using two of the points as focii, and the last one as a point on the ellipse, ellipse A, B and ...

Recently, a comment made by Matt Parker on a Numberphile video made me start to think about the implications of positive infinity equaling negative infinity.

First off, what would the ...

I want to write the formula that gives the area of a regular polygon with base $b$ and no. of angles $n$. See the figure I made [made on Paint ...

I discovered the following relationship while playing around with concepts discussed in recent Veritasium video.

Let's consider the sequence ...

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