Pure 4
Pure 5
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AS/A2 Pure 4 Pure 5 |
| P6 Topic 3: Vectors | ||
| Triple scalar product definition |   |
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| The triple scalar product of the vectors a, b and c is defined to be: | ||
| a.b×c | ||
| and can be read as the scalar product of a and
b×c. If i, j and k are the familiar unit vectors, then: |
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| If a = a1i+a2j+a3k, b = b1i+b2j+b3k and c = c1i+c2j+c3k then: | ||
| a.b×c = a1(b2c3-b3c2)+ a2(b3c1-b1c3) + a3(b1c2-b2c1) | ||
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