magnitude/direction form
What magnitude/direction form means in Mathematics A-Level, as defined for AQA, Pearson Edexcel.
Definitions of magnitude/direction form
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Reference: AQA
A representation using r, the magnitude, and theta, the direction, converted back using x = r cos(theta) and y = r sin(theta).
A non-zero vector written as its positive magnitude multiplied by a unit vector in its direction: \(\mathbf a=|\mathbf a|\hat{\mathbf a}\).
Topics that use magnitude/direction form
- J: Vectors (AQA A-Level)
- Vectors (Pearson Edexcel A-Level)
Related terms
- component
- component form
- Magnitude
- Parallel vectors
- Position vector
- scalar multiplication
- Unit vector
- Vector
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