Trigonometric functions for angles of any size (AQA GCSE Further Maths): Flashcards
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12 cards from this deck
Starting point for measuring angles in maths
Starting point for measuring angles in maths
Positive x-axis
Direction of rotation for positive angles
Direction of rotation for positive angles
Anticlockwise from positive x-axis
Direction of rotation for negative angles
Direction of rotation for negative angles
Clockwise from positive x-axis
How compass bearings are measured (exception)
How compass bearings are measured (exception)
Clockwise from north
Definition of unit circle
Definition of unit circle
Circle with radius 1 centered at origin
On unit circle, equals
On unit circle, equals
(y-coordinate of point P)
On unit circle, equals
On unit circle, equals
(x-coordinate of point P)
On unit circle, equals
On unit circle, equals
(ratio of y to x coordinate)
What is standard position for an angle?
What is standard position for an angle?
Vertex at origin, initial side along positive x-axis
Range of angles unit circle definitions work for
Range of angles unit circle definitions work for
Any angle size
Can trig functions have negative values?
Can trig functions have negative values?
Yes, for certain angle ranges
Important calculator check for trig problems
Important calculator check for trig problems
Check if in degree or radian mode