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Vectors a) Given that the vectors connecting the points O, A and B are given by OÀ=8i+j+7k, OB=2i-9j-k Show, by consider
Posted: Thu Jun 02, 2022 12:12 pm
by answerhappygod
- Vectors A Given That The Vectors Connecting The Points O A And B Are Given By Oa 8i J 7k Ob 2i 9j K Show By Consider 1 (70.69 KiB) Viewed 36 times
Vectors a) Given that the vectors connecting the points O, A and B are given by OÀ=8i+j+7k, OB=2i-9j-k Show, by considering Pythagoras' Theorem and the scalar product, that triangle OAB is right-angled. marks) b) Given that the vectors connecting the points O, C and D are given by OĆ 21-11j-4k, = OD=-2i+19j+14k and E is the midpoint of the line segment CD. Find the angle between the vectors OD and OÈ (5 (5 marks)