## Elementary Linear Algebra 7th Edition

Published by Cengage Learning

# Chapter 5 - Inner Product Spaces - 5.1 Length and Dot Product in Rn - 5.1 Exercises - Page 235: 49

neither

#### Work Step by Step

Given the vectors $\mathbf{u}=(0,1,0), \quad \mathbf{v}=(1,-2,0)$, then $$u\cdot v=(0,1,0)\cdot (1,-2,0)=-2.$$ So the vectors are not orthogonal, not parallel, they are (neither).

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