Solving for Vector w in R3 Homework Problem

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SUMMARY

The discussion centers on the vector w in R3, defined as w = e1 + e2 + e3, where e1, e2, and e3 represent basis vectors. The user correctly identifies the Cartesian basis vectors as e1 = (1,0,0), e2 = (0,1,0), and e3 = (0,0,1), leading to the conclusion that w = (1,1,1). However, it is emphasized that any set of three orthogonal vectors can serve as basis vectors, provided they are orthonormal.

PREREQUISITES
  • Understanding of vector spaces in R3
  • Familiarity with basis vectors and orthogonality
  • Knowledge of orthonormal vectors
  • Basic linear algebra concepts
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  • Study the properties of orthonormal bases in vector spaces
  • Learn about different types of basis vectors beyond Cartesian coordinates
  • Explore the concept of vector addition and its geometric interpretation
  • Investigate applications of orthogonal vectors in computer graphics
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Students studying linear algebra, educators teaching vector spaces, and anyone interested in the geometric interpretation of vectors in R3.

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Homework Statement


Hi, I have a really short (and dumb) question.

In one of my homework problems they talk about a vector w, such that w=e1+e2+e3. (In R3.)

The Attempt at a Solution


I guess they mean that: e1=(1,0,0), e2=(0,1,0) and e3=(0,0,1). So w=(1,1,1). Right?
 
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Sort of. the ei are usually basis vectors, but they do not have to be Cartesian basis vectors.
Any three orthogonal vectors will do - helps if they are orthonormal.
 
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