Question: Let V be the vector space R3. Examine whether the following are subspaces or not. (a) W1 = {(a, b, c) EV; a 2 0).

Let V be the vector space R3. Examine whether the following

Let V be the vector space R3. Examine whether the following are subspaces or not. (a) W1 = {(a, b, c) EV; a 2 0). (b) WA = {(a, b, c) E V; b + 4c = 0}

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