Linear Algebra: A Modern Introduction

Published by Cengage Learning
ISBN 10: 1285463242
ISBN 13: 978-1-28546-324-7

Chapter 1 - Vectors - Chapter Review - Review Questions - Page 56: 12



Work Step by Step

The midpoint $M$ of the line segment from $P_1(x_1,y_1,z_1)$ to $P_2(x_2,y_2,z_2)$ is: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2},\frac{z_1+z_2}{2})$. Hence: $M=(\frac{5+3}{2},\frac{1-7}{2},\frac{-2+0}{2})=(4,-3,-1)$.
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