CXC CSEC exams May/June 2011 are almost here!
1. Distinguish between a vector quantity and a scalar quantity.
A vector quantitiy has a magnitude(size) and a direction.
A scalar quantity only has a magnitude(size).
2. Define: (a) Parallel vectors (b) Equal vectors (c) Inverse vectors
(a) Parallel vectors must have same direction (not necessarily same magnitude).
(b) Equal vectors have the same magnitude and direction.
(c) Inverse vectors have same magnitude but exact opposite direction.
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i have realsed as of reccently that the amount of people who do sine or cosine rule always get it worng, so i have found rules when to use sine and cosine rule.
when you have two sides and angle or two angles and a side.
two sides and the angle opposite the side missing
We just post a topic and someone will help...questions..querries...etc