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Relative to an origin O, the position vectors of points A and B are given byOA = 5i + j...
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High School Teacher
Two vectors will be perpendicular i.e. at the angle of 90° if their scalar product (dot product) is equal to 0.
So let's find scalar product of those two vectors:
Now for those two vectors to be perpendicular `17+2p` must be equal to 0.
`p=-17/2` <-- Your solution
Posted by tiburtius on September 20, 2013 at 11:49 AM (Answer #1)
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