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Handout
Wolfram Math World: Vector Handout
Wolfram Research

Wolfram Math World: Vector

For Students 9th - 10th Standards
This site from Mathworld.com provides a detailed overview of vectors in algebra, and includes numerous formulas and examples.
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Handout
Wolfram Math World: Direction Cosine Handout
Wolfram Research

Wolfram Math World: Direction Cosine

For Students 9th - 10th Standards
This page discusses the direction cosine, which can be used to find the coordinates of a unit vector in the direction of any given vector. Includes some rather advanced formulas.
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