Edexcel Mathematics Sample paper · Paper 1 · Question 7 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

Sample paper · Paper 1 · Question 7 · 5 marks

7. B A C Figure 2 Figure 2 shows a sketch of a triangle ABC. → Given AB → = 2i + 3j + k and BC = i – 9j + 3k, show that ∠BAC = 105.9° to one decimal place.

Lesson: Vectors in 2D and 3D