Let S and T be arbitrary nonempty subsets (not necessarily subspaces) of a vector space V and let k be a scalar. The sum S+T' and the scalar product kS are defined by S+T = (u + v : u € S, vɛ T}, AS = {ku : u e S} [We also write w +S for {w} +S.] Let S = {(1, 2), (2,3)}, T = {(1,4), (1,5), (2, 5)}, w = (1, 1), k = 3 Find: (a) S+ T, (b) w +S, (c) kS, (d) kT, (c) kS + kT, (f) k(S+ T').

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.2: Vector Spaces
Problem 38E: Determine whether the set R2 with the operations (x1,y1)+(x2,y2)=(x1x2,y1y2) and c(x1,y1)=(cx1,cy1)...
Question
Let S and T be arbitrary nonempty subsets (not necessarily subspaces) of a vector space V and let k be a
scalar. The sum S+T and the scalar product kS are defined by
S+T = (u+v: u e S, ve T},
kS = { ku : u E S}
[We also write w +S for {w} +S.] Let
S = {(1,2), (2, 3)},
T = {(1,4), (1,5), (2, 5)},
w = (1, 1),
k = 3
Find: (a) S+T, (b) w +S, (c) kS, (d) kT, (e) kS + kT, (f) k(S+ T').
Transcribed Image Text:Let S and T be arbitrary nonempty subsets (not necessarily subspaces) of a vector space V and let k be a scalar. The sum S+T and the scalar product kS are defined by S+T = (u+v: u e S, ve T}, kS = { ku : u E S} [We also write w +S for {w} +S.] Let S = {(1,2), (2, 3)}, T = {(1,4), (1,5), (2, 5)}, w = (1, 1), k = 3 Find: (a) S+T, (b) w +S, (c) kS, (d) kT, (e) kS + kT, (f) k(S+ T').
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