Show that H = y:x+2y-z + 1 = 0 is not a sub-space of R³. -1=0} is

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A: solution :-

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A: The given U=1, 1, 0, 1, 0, 1, 2, 3, 2, 3, 2, -1 and  W=1, 3, 4, 4, 1, 1, 0, 2 be a subspaces of ℝ4.…

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A: the answer is

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