Write x as the sum of two vectors, one in Span fu1,u2,uz} and one in Span fu4}. Assume that fu, .u4} is an orthogonal basis for R*. 2 1 4 12 1 4 - 2 - 7 U, = Uz = 1 - 3 1 - 1 4 - 1 - 3 1 (Type an integer or simplified fraction for each matrix element.)

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