Forgot password?
 Register account
View 2019|Reply 2

[函数] 同一函数

[Copy link]

19

Threads

25

Posts

253

Credits

Credits
253

Show all posts

reny Posted 2014-1-6 14:50 |Read mode
$f(x)=x^2$和$f(x+1)=(x+1)^2$究竟是不是同一函数?我怎么觉得是呢

686

Threads

110K

Posts

910K

Credits

Credits
91229
QQ

Show all posts

kuing Posted 2014-1-6 15:14
你只要知道对应法则 $f$ 是相同的就行了,争议的只是理解问题(也就是说问题中的“同一函数”到底是指两个 $f$ 还是指等号右边两个式子),纠结这个没什么意思……

770

Threads

4692

Posts

310K

Credits

Credits
35048

Show all posts

isee Posted 2014-1-6 16:54
没这么出题的吧?

Mobile version|Discuz Math Forum

2025-5-31 10:47 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit