Calcule a determinante das matrizes.
a![\left[\begin{array}{ccc}3&-2\\1&4&\\\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B-2%5C%5C1%26amp%3B4%26amp%3B%5C%5C%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}3&-2\\1&4&\\\end{array}\right]")
b) ![\left[\begin{array}{ccc}-1&2\\5&-3&\\\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-1%26amp%3B2%5C%5C5%26amp%3B-3%26amp%3B%5C%5C%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}-1&2\\5&-3&\\\end{array}\right]")
c) ![\left[\begin{array}{ccc}3&0&\\0&1&\\\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B0%26amp%3B%5C%5C0%26amp%3B1%26amp%3B%5C%5C%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}3&0&\\0&1&\\\end{array}\right]")
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Está aí ! Espero ter ajudado , qualquer dúvida é só perguntar . Bons estudos !
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