Question: subspaces or not: (ii) (iii) Check whether the following subsets W of V, (R) are (iv) (v) W = {(a, b, c): c is

subspaces or not: (ii) (iii) Check whether the following subsets W of

subspaces or not: (ii) (iii) Check whether the following subsets W of V, (R) are (iv) (v) W = {(a, b, c): c is an integer} W = {(a, b, c): a, b, c E Q} W = {(a, b, c): a b c} W = {(a, b, c): a + b +c 1} W = {(a, b, c): b + 4 c=0}. (P.U. 2010) (P.U. 2010)

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