Question: Prove or disprove that R3 is a vector space under these operations. (a) (b) X1 0and T ZI

Prove or disprove that R3 is a vector space under these operations.
(a)
Prove or disprove that R3 is a vector space under

(b)

Prove or disprove that R3 is a vector space under

X1 0and T ZI

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