Q12. A square matrix A is called a nilpotent matrix if Ap = 0, where p is a positive integer. Then p is called the index of the nilpotent matrix, provided Ap-1 ≠ 0. Which of the following is a nilpotent matrix of index 2?Mathematics — NUST Mock 2 — Question 12 of 200A. A = [[1, 1], [1, 1]]B. B = [[1, 0], [0, 1]]C. C = [[cos(θ), -sin(θ)], [sin(θ), cos(θ)]]D. D = [[1, 1], [-1, -1]]Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →