Orthogonal and Orthonormal Sets In Exercises 1-12, (a) determine whether the set of
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Chapter 5 Solutions
Elementary Linear Algebra
- Orthogonal and Orthonormal SetsIn Exercises 1-12, a determine whether the set of vectors in Rnis orthogonal, b if the set is orthogonal, then determine whether it is also orthonormal, and c determine whether the set is a basis for Rn. {(2,4),(2,1)}arrow_forwardProof Prove that if S={v1,v2,,vn} is a basis for a vector space V and c is a nonzero scalar, then the set S1={cv1,cv2,,cvn} is also a basis for V.arrow_forwardLet v1, v2, and v3 be three linearly independent vectors in a vector space V. Is the set {v12v2,2v23v3,3v3v1} linearly dependent or linearly independent? Explain.arrow_forward
- Proof When V is spanned by {v1,v2,...,vk} and one of these vector can be written as a linear combination of the other k1 vectors, prove that the span of these k1 vector is also V.arrow_forwardProof In Exercises 6568, complete the proof of the remaining properties of theorem 4.3 by supplying the justification for each step. Use the properties of vector addition and scalar multiplication from theorem 4.2. Property 6: (v)=v (v)+(v)=0andv+(v)=0a.(v)+(v)=v+(v)b.(v)+(v)+v=v+(v)+vc.(v)+((v)+v)=v+((v)+v)d. (v)+0=v+0e.(v)=vf.arrow_forwardProofProve in full detail that M2,2, with the standard operations, is a vector space.arrow_forward
- Proof Prove Theorem 4.12. THEOREM 4.12 Basis Tests in an n-Dimensional Space Let V be a vector space of dimension n. 1. If S={v1,v2,,vn} is a linearly independent set of vectors in V, then S is a basis for V. 2. If S={v1,v2,,vn} spans V, then S is a basis for V.arrow_forwardDetermining Whether a Set Is a Basis In Exercises 5356, determine whether S is a basis for R3. If it is, write u=(8,3,8) as a linear combination of the vectors in S. S={(23,52,1),(1,32,0),(2,12,6)}arrow_forwardExplaining Whether a Set Is a Basis In Exercises 39-46, determine whether Sis a basis for the given vector space. S={(1,2),(1,1)} for R2arrow_forward
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