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VMariaS [17]
3 years ago
9

Wha is the value of 8(3+x) when x=7

Mathematics
1 answer:
Genrish500 [490]3 years ago
6 0

Answer:80

Step-by-step explanation:

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1 year ago
Give an example of a 2x2 matrix without any real eigenvalues:___________
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Step-by-step explanation:

An eigenvalue of n × n is a function of a scalar \lambda  considering that there is a solution (i.e. nontrivial) to an eigenvector x of Ax =  

Suppose the matrix A = \left[\begin{array}{cc}-1&-1\\2&1\\ \end{array}\right]

Thus, the equation of the determinant (A - \lambda1) = 0

This implies that:

\left[\begin{array}{cc}-1-\lambda &-1\\2&1- \lambda\\ \end{array}\right] =0

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Hence, the eigenvalues of the equation are \mathtt{\lambda = i , -i}

Also, the eigenvalues can be said to be complex numbers.

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X is positive 2 and y is positive 1
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