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# Vector Direction

## Directional angles and direction cosines / components of the unit vector.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Video

## Direction Angles - Overview

by CK-12 //basic
Overview
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• Video

## Direction Angles - Example 1

by CK-12 //basic
Find the magnitude and direction angle of the vector
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• Video

## Direction Angles - Example 3

by CK-12 //basic
Find the component form of the sum of two vectors with the given direction angles
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• Video

## Direction Angles - Example 4

by CK-12 //basic
Use the Law of Cosines to find the angle between two vectors
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• Video

## Direction Angles - Example 5

by CK-12 //basic
Word Problems - use vectors to find speed and direction
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• Video

## Direction Angles - Example 6

by CK-12 //basic
Word Problems - resultant force
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