Magnitude of a Vector How do you find the magnitude of a vector? The?magnitude?of a vector tells us its?size?or?length For a?displacement?vector it tells us the?distance?between the two points For ...
Adding & Subtracting Vectors How are vectors added and subtracted numerically? To?add?or?subtract?vectors numerically simply add or subtract each of the corresponding components In?column vecto...
Scalars & Vectors What are scalars? Scalars?are quantities without?direction They have only a?size (magnitude) For example:?speed, distance, time, mass Most scalar quantities?can never be?negat...
Strategy for Trigonometric Equations How do I approach solving trig equations? You can solve trig equations in a variety of different ways Sketching a graph? If you have your GDC it is always worth...
Trigonometric Proof How do I prove new trigonometric identities? You can use trigonometric identities you already know to prove new identities Make sure you know how to find all of the trig identit...
Inverse Trig Functions What are the inverse trig functions? The functions?arcsin,?arccos?and?arctan?are the?inverse functions?of?sin,?cos?and?tan?respectively when their domains are restricted sin ...
Reciprocal Trig Functions What are the reciprocal trig functions? What do the graphs of the reciprocal trig functions look like? The graph of?y?=?secx?has the following properties: The?y-axis?is a?...
Quadratic Trigonometric Equations How are quadratic trigonometric equations solved? A quadratic can give up to two solutions You must consider both solutions to see whether a real value exists Reme...
Trigonometric Equations: sinx = k How are trigonometric equations solved? Trigonometric equations can have an infinite number of solutions For an equation in sin or cos you can add 360° or 2π to ea...
