A LEVELS P3 VECTORS

This video explains how to:
1. Use standard notations for vectors
2. Carry out addition and subtraction of vectors and multiplication of a vector by a scalar, and interpret these operations in geometrical terms
3. Calculate the magnitude of a vector, and use unit vectors, displacement vectors and position vectors
4. Understand the significance of all the symbols used when the equation of a straight line is expressed in the form r = a + tb, and find the equation of a line, given sufficient information
determine whether two lines are parallel, intersect or are skew, and find the point of intersection of two lines when it exists
5. Use formulae to calculate the scalar product of two vectors, and use scalar products in problems involving lines and points.

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0:00 marathon begins
8:15 starts
13:00 intro
18:10 magnitude of a vector
20:00 unit vector
27:30 parallel & collinear vectors
35:00 position vectors
38:28 dot product
54:40 ways in which vectors can be multiplied
57:00 break
1:10:18 vectors (p3)
1:12:59 eq. of a line
1:20:40 vector to parametric form
1:24:16 parametric to cartesian form
1:32:48 sometimes cartesian is in incorrect form
1:39:48 ways in which eq. of line will be asked
1:51:17 two lines
1:55:15 practice question
2:05:18 point of intersection
2:07:09 angle of intersection
2:11:55 foot of perpendicular
2:21:28 ways of finding distance
2:29:05 practice questions




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