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Chapter 9: Q. 16 (page 632)

In Problems 14鈥�18, P1=32,72 and P2=82,22.

Find the unit vector in the direction ofv.

Short Answer

Expert verified

The unit vector in the direction ofvis12,-12

Step by step solution

01

Step 1. Given information

The points are

P1=32,72P2=82,22

02

Step 2. Find the unit vector in the direction of v.

Let the unit vector is u

v=52,-52

role="math" localid="1646903121415" u=vv=52,-52522+-522=52,-5210=12,-12

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