Question: 1. Determine whether the following are a subspace or not. Give sufficient reasons for your answer. (a) {(x, y, z ) (R' : ty +

1. Determine whether the following are a subspace or not. Give

1. Determine whether the following are a subspace or not. Give sufficient reasons for your answer. (a) {(x, y, z ) (R' : ty + = =0} (b) {(x, y, 2) (R3 : xty+2=1} (c) {(x, y) E R2 : y = 2r + 1}

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