Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Many students think they've solved a trig equation when they get one answer (one size of angle ... Let's remind ourselves of what the sine graph looks like so that we can see how many solutions ...

cos(θ) is the x-coordinate of the point P and, sin(θ) is the y-coordinate of the point P. This applet shows how the graphs of sin(θ) and cos(θ) follow directly from the definition of these functions.

but many fail to make the leap on how crucial circles are for trig functions. With static graphs and equations, it's possible to get a handle on the rules of what various functions do and mean.

Concepts are linked and explained using creative ways like maps, lines, graphs, flow charts etc ... important mathematical concepts like inverse trigonometric functions. CBSE Class 12 maths ...