Topic 11 0.0 / 5 ? MathematicsVectorsASEdexcel Created by: Jemma1494Created on: 06-06-21 18:06 Vector Magnitude and direction 1 of 10 Representing vectors Column vector with change in x on the top and change in y on the bottom i/j notion with 6i + 4j = 6 right and 4 up 2 of 10 Multiplying vectors X(2i+5j) = 2Xi + 5Xj 3 of 10 Adding vectors (2i+5j) + (7i+3j) = 9i+8j 4 of 10 Magnitude of a vector If a = xi + yj magnitude = |a| = √x^2 + y^2 5 of 10 Unit vector in a given direction a/|a| 6 of 10 Position vectors The distance of a point from another written as two letters with a line above showing the direction of the vector If the origin is the starting point then the coordinates of the other point are the i/j notation for the vector 7 of 10 Parallel lines Parallel lines have the same vector 8 of 10 Angles from y - axis Angles can be taken from vectors in the y -axis means the angle where the vector line meets the vertical line (Always taken upwards) 9 of 10 Angles from the x - axis Angles in the x - axis means the angle where the vector line meets the horizontal line 10 of 10
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