我画个图给你你就知道了。。
追答![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/ac4bd11373f082023750dba948fbfbedaa641b61?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/c8ea15ce36d3d5396143ba553987e950352ab02e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
看得懂吗??
不要想着有界肯定收敛,像正余弦就是很好的例子,记住就好了。
追问可是这个题目图是哪个
我觉得an收敛啊
追答我去,没看到这个题目,我给你做一下啊
光给你解释区别了
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/5d6034a85edf8db1dce1cdf20a23dd54574e745c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
看懂了吗??
追问恩 看不懂 还是谢谢你啊
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d6ca7bcb0a46f21f02f5eec5f5246b600d33ae67?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
能再问你一个问题吗
追答恩
追问为什么 右边这样写啊
d2y/dx2
追答这是二次求导
追问大神拜托😰😰😰
追答说实话,我自己也没有深究过这些,当时学的时候就直接看书上写成这样就直接写了,我再多看会,待会给你答复啊。
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