Mathematics (AS & A Level) · Oct / Nov 2016 · Paper 13 · Question 7
9709
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A B C D The diagram shows a triangular pyramid ABCD. It is given that −−→ AB = 3i + j + k, −−→ AC = i −2j −k and −−→ AD = i + 4j −7k.
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7(i)[3]
7(ii)[4]
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