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Chapter 9: Q. 42 (page 621)

In Problems 39鈥�44, find each quantity if v=3i-5j+2kandw=-2i+3j-2k

v+w

Short Answer

Expert verified

The value of v+wis 5

Step by step solution

01

Step 1. Given

The quantities:

v=3i-5j+2k;w=-2i+3j-2k

To find the given values.

02

Step 2. Combine like terms

Combine like terms

v+w=3i-5j+2k+(-2i+3j-2k)=i-2j

03

Step 3. Find the length of the vector

The length of the factor is,

i-2j=12+(-2)2=1+4=5

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