Let V be the set of all ordered pairs of real numbers (u1, u2) with uz > 0. Consider the following addition and scalar multiplication operations on u = (u1, u2) and v = (v1, v2): %3D u +v = (u1 + v1 – 5, 2uzv2), ku = (kuj, kuz) Use the above operations for the following parts. (a) Compute u + v for u = (1, 5) and v = (1, 7). (b) If the set V satisfies Axiom 4 of a vector space (the existence of a zero vector), what would be the zero vector? (c) If u = (-7, 5), what would be the negative of the vector u referred to in Axiom 5 of a vector space? (Don't forget to use your answer to part (b) here!)

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