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Scrieți o matrice [tex]\mathrm{din} \mathcal{M}_{1,3}(\mathbb{N}), \mathcal{M}_{4,1}(\mathbb{Z}), \mathcal{M}_{2,3}(\mathbb{Q}), \mathcal{M}_{3,3}(\mathbb{R}), \mathcal{M}_{3,4}(\mathbb{C}\space )[/tex].