Unformatted text preview: the horizontal line that divides the curve in half, as in Figure 5.2.3. x y | A | −| A | π 4 π 2 3 π 4 π 5 π 4 3 π 2 7 π 4 2 π 2 | A | | A | | A | Figure 5.2.3 Amplitude = max − min 2 = | A |− ( −| A | ) 2 =| A | Not all periodic curves have an amplitude. For example, tan x has neither a maximum nor a minimum, so its amplitude is unde±ned. Likewise, cot x , csc x , and sec x do not have an amplitude. Since the amplitude involves vertical distances, it has no effect on the period of a function, and vice versa....
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- Fall '11
- Calculus, Periodic function, Mathematical analysis, Graph of a function