# Chapter 7 - Section 7.6 - Vectors: The Dot Product - 7.6 Problem Set: 30

$(1,0)\cdot(0,1)=0$

#### Work Step by Step

If the vectors are perpendicular, their dot product must be zero. Dot product$=(1,0)\cdot(0,1)=1(0)+0(1)=0+0=0$. Therefore, $\textbf {i}$ and $\textbf {j}$ are perpendicular.

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