# Chapter 12 - Vectors and the Geometry of Space - Review - True-False Quiz - Page 882: 5

True

#### Work Step by Step

If u = , and v = , u ∙ v = $u_{1}$$v_{1} + u_{2}$$v_{2}$ = v ∙ u = $v_{1}$$u_{1} + v_{2}$$u_{2}$

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