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1.11.7 Language of vectors in three dimensions (A-level only)

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Question 17

Given that ∣12i+kj+3k∣=13|12\mathbf{i} + k\mathbf{j} + 3\mathbf{k}| = 13∣12i+kj+3k∣=13

Find the two possible values of kkk

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1.11.7 Language of vectors in three dimensions (A-level only) Questions

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