Neco 2022 Mathematics Question 26
Practice objective / multiple choice question 26 from the 2022 Neco Mathematics examination.
Given vectors \\(\\mathbf{u}\\) and \\(\\mathbf{v}\\) in the plane with magnitudes \\(|\\mathbf{u}| = 7\\) and \\(|\\mathbf{v}| = 9\\) respectively, and \\(|\\mathbf{u}+\\mathbf{v}| = 13\\). Find (i) the angle between \\mathbf{u} and \\mathbf{v} (to the nearest degree), and (ii) the magnitude of the vector \\mathbf{w}=3\\mathbf{u}-4\\mathbf{v} expressed in simplest radical form.
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About This Question
This is Neco 2022 Mathematics Question 26. It is one of the objective questions from the 2022 Neco Mathematics examination.
Difficulty level: Hard .
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