Let V = R³, U = {(x, y, z) = R³ | 3x + y = 5z = 0} and W = {(x, y,0) = R³ | x + 2y =0}. Which of the following applies to UnWand U+W? Select one: None of the others apply Un W is a line, U + W = V UnW= {0},U + W = V UnW=W, U+W = U UnW is a line, U + W is a plane

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