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Edexcel A Level Maths: Pure:復(fù)習(xí)筆記11.1.4 Position Vectors

Category: A-level課程, 國際課程, 教材筆記, 福利干貨 Date: 2022年11月2日 上午11:52

Position Vectors

What is a position vector?

  • Position vectors describe the?position of a point?in relation to the?origin
  • They are different to?direction vectors?which describe the?direction and distance?between any two points

Distance between two points

  • The distance between two points is the?magnitude?of the vector between them (see Magnitude Direction)

  • For?position vectors?we can find the distance between two points by using the respective co-ordinates

Exam Tip

  • Remember if asked for a position vector, you must find the vector all the way from the origin.
  • Diagrams can help, if there isn’t one, draw one.

Worked Example

 

 

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