Graphical Analysis With a graphing utility in radian and parametric modes, enter the equations
XIT = cos T and YIT = sin T
and use the following settings.
Tmin = 0, Tmax = 6.3, Tstep = 0.1
Xmin = −1.5, Xmax = 1.5, Xscl = 1
Ymin = −1, Ymax = 1, Yscl = 1
(a) Graph the entered equations and describe the graph.
(b) Use the trace feature to move the cursor around the graph. What do the t-values represent? What do the x- and y-values represent?
(c) What are the least and greatest values of x and y?
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