1
Q
period
A
length of an interval
2
Q
sin period
A
2π
2
Q
crest
A
a function’s maximum value point
2
Q
cosine period
A
2π
3
Q
trough
A
A function’s minimum value point
4
Q
midline
A
the line halfway between the trough and crest
5
Q
amplitude
A
the distance between the trough and midline
6
Q
coterminal angles
A
angles that share the same terminal side = 90°, 450°, -270°
7
Q
reference angle
A
angle between x axis and terminal side.
help... ANYONE!!!
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