a) delt A
b) 2×delt A
c) delt (2A)
d) delt (2A^t)
me ajudem por favor.
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Boa Tarde!!
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![D= \left[\begin{array}{ccc}5&0&-1\\3&2&-4\\-2&7&1\end{array}\right]](https://tex.z-dn.net/?f=D%3D++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D5%26amp%3B0%26amp%3B-1%5C%5C3%26amp%3B2%26amp%3B-4%5C%5C-2%26amp%3B7%26amp%3B1%5Cend%7Barray%7D%5Cright%5D+ "D= \left[\begin{array}{ccc}5&0&-1\\3&2&-4\\-2&7&1\end{array}\right]")
![D= 5(-1)^2 * \left[\begin{array}{cc}2&-4\\7&1\end{array}\right] + 3(-1)^3* \left[\begin{array}{cc}0&-1\\7&1\end{array}\right] + (-2)(-1)^4*\left[\begin{array}{cc}0&-1\\2&-4\end{array}\right][tex] <br /><br />[tex]D=5*30-3*7-2*2 = 125](https://tex.z-dn.net/?f=D%3D+5%28-1%29%5E2+%2A+%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D2%26amp%3B-4%5C%5C7%26amp%3B1%5Cend%7Barray%7D%5Cright%5D+%2B+3%28-1%29%5E3%2A++%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D0%26amp%3B-1%5C%5C7%26amp%3B1%5Cend%7Barray%7D%5Cright%5D+%2B+%28-2%29%28-1%29%5E4%2A%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D0%26amp%3B-1%5C%5C2%26amp%3B-4%5Cend%7Barray%7D%5Cright%5D%5Btex%5D++%3Cbr+%2F%3E%3Cbr+%2F%3E%5Btex%5DD%3D5%2A30-3%2A7-2%2A2+%3D+125 "D= 5(-1)^2 * \left[\begin{array}{cc}2&-4\\7&1\end{array}\right] + 3(-1)^3* \left[\begin{array}{cc}0&-1\\7&1\end{array}\right] + (-2)(-1)^4*\left[\begin{array}{cc}0&-1\\2&-4\end{array}\right][tex] <br /><br />[tex]D=5*30-3*7-2*2 = 125")
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