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T = \begin{pmatrix}1&-\sqrt{3}\\ \sqrt{3}&1\end{pmatrix}. What is the area that is the result from applying this transformation to a pentagone with points (-1,0), (0,1), (1,1), (0,-1), (1,0). 

 Jun 8, 2021
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The new area of the pentagon is 36.

 Jun 13, 2021

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