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The points A, B and C have position vectors

$\mathbb{a}=i -3j, \mathbb{b}=2i-j+k$ and $\mathbb{c}=10j+10k$ respectively.

  1. Calculate the product $a\cdot (b \longleftrightarrow c)$
  2. Describe fully the geometrical meaning of this product.
in A Level Maths by Diamond (49,550 points) | 27 views

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