It will be noticed from Fig. 8 – 9 that a constant term(常数项) can be added to an even function(偶函数) without affecting the symmetry(对称性), but not so with an odd(奇的) function.
举一反三
- If [img=34x25]1803e254fa72e37.png[/img] is an even function and [img=33x25]1803e25502f5f78.png[/img] is an odd function，then ( ). A: All [img=191x25]1803e2550bd75da.png[/img] are even functions; B: All [img=191x25]1803e25513d5400.png[/img] are odd functions; C: [img=124x25]1803e2551c3ff9f.png[/img]are odd functions and [img=56x25]1803e25523e8c1c.png[/img]is an even function; D: [img=124x25]1803e2552c8c3c6.png[/img] are even functions and [img=56x25]1803e25534c2a44.png[/img] is an odd function.
- The correlation function is an even function. ( )
- The function [img=164x43]1803e256fccc749.png[/img] is a （ ）. A: bounded function B: periodic function C: even function D: odd function
- The correlation function is an even function. ( ) A: 正确 B: 错误
- A simple approach _______ expressing a function（函数） is shown _______ Fig. 4-1.