A² A²
![sin aTa],- sin a cos athen the matrix of A² (a) is equalIf A(a) =cos..](https://storage.googleapis.com/filo-question-diagrams/6376657_JELeYR_1746208400077490254_image_crop_b28f8eba-5fca-4f01-9380-7c68c84608445727662175167455114.jpg)
![Given the matrix A = [[2, 8], [1, 4]], work out A² - 4A. | Filo](https://storage.googleapis.com/filo-question-diagrams/6424000_DvpXbw_1756665836480673378_image_crop_56619f62-a930-41a7-8e56-63d521f78eef5153030288942050949.jpg)
![Let A = matrix [a] 2×2 that SW be a If = 5. = = det(A - I) and AA² + aA](https://classroom-images.cdn.askfilo.com/classroom/1765287108158_yiwafjsi_5034761.jpg)
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