Question

Two vectors u and i are acting from the point P. If || = 9, || = 11 and|ū+ | = 14 then determine lu - vl. Include a diagram in your solution.Round your answer to the nearest tenth. . ABCDEFGH is a regular octagon with sides of unit length and 0 is the centre. If AB = u and BC = 7, express FO in terms of and u and . Leave your final answer in exact form.[5T]

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