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(1 point) (a) If S is the subspace of M3(R) consisting of all lower triangular matrices, then dim S = (b) If S is the subspac

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Solution @ we have Sin the nulospace of Me (R) commenting of all lorrer tris angular matrix a, b,c,d, ef Er] cie, S { b c deB Given, S in the sechspare of Me (R) consisting of al c. matrices. skow-symmentic b d C ie, s=5/0 : b, c, d, e, f, gFIR -b o

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