In Problems 114, a subset W of some n space R n is defined by means of a given condition imposed on the typical vector (x 1 , x 2 , ,x n ) Apply Theorem 1 to determine whether or not W is a subspace of R n W is the set of all vectors in R 2 such that (x 1 ) 2 (x 2 ) 2 0 THEOREM 1 Conditions for a S...

In Problems 114, a subset W of some n-space R n is defined by means of a

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In Problems 1–14, a subset W of some n-space Rⁿ is defined by means of a given condition imposed on the typical vector (x₁, x₂, .... ,x_n). Apply Theorem 1 to determine whether or not W is a subspace of Rⁿ.

W is the set of all vectors in R² such that (x₁)² + (x₂)² = 0.

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Differential Equations And Linear Algebra

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Authors: C. Edwards, David Penney, David Calvis

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In Problems 114, a subset W of some n-space R n is defined by means of a

Question:

THEOREM 1 Conditions for a Subspace The nonempty subset W of the vector space V is a subspace of V if and only if it satisfies the following two conditions: (i) If u and v are vectors in W, then u + v is also in W. (ii) If u is in W and c is a scalar, then the vector cu is also in W.

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Differential Equations And Linear Algebra

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