PAU Applied Math ACS II (Galicia) Practice Questions - Galicia PAU Applied Mathematics For Social Sciences II Matemáticas Aplicadas A Las Ciencias Sociales II Exam

Find all real values of k for which the matrix A = [[k-1, 4], [2, k+1]] has a determinant equal to zero.

k = 3 and k = -3 k = 9 and k = -9 k = 1 and k = -1 k = 5 and k = -5

Correct Answer:

k = 3 and k = -3

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