Cosine Function
General Cosine Function
Explore interactively the general cosine function
Particular exploration of the phase shift is undertaken by plotting f(x) = a cos(bx + c) + d in blue and f(x) = a cos(bx) + d in red as shown in the figure below. This is to explain the effects of c on the phase shift.
You may also want to consider another tutorial on the trigonometric unit circle . Once you finish the present tutorial, you may want to go through a self test on trigonometric graphs . Interactive TutorialExplore graph of functions of the form f(x) = a cos(b x + c) + dExplore how the 4 coefficients a,b,c and d affect the graph of f(x)?
More References to Cosine Functions |