Find Characteristic Equation of 2x2 Matrix | Linear Algebra Exercises

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We go over four examples of finding the characteristic polynomial and characteristic equation of a 2x2 matrix. To do this we find the determinant of lambda times the identity minus the given matrix. Setting this equal to zero is the characteristic equation of the matrix. #linearalgebra

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0:00 Intro
0:14 Review of Definition
0:56 Problem 1
2:40 Problem 2
3:44 Problem 3
4:39 Problem 4
5:10 Conclusion

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thank you so much , where can i find video about 3x3 characteristic ?

mawaddahalzubidi