Question Number 131007 by Study last updated on 31/Jan/21

Answered by Boucatchou last updated on 31/Jan/21

Answered by MJS_new last updated on 31/Jan/21

Commented by MJS_new last updated on 31/Jan/21
![f(x)=c (d/dx)[lim_(c→∞) c]=0](https://www.tinkutara.com/question/Q131015.png)
Commented by JDamian last updated on 31/Jan/21

Commented by MJS_new last updated on 31/Jan/21
![but (d/dx)[anything without x]=0](https://www.tinkutara.com/question/Q131030.png)
Commented by Boucatchou last updated on 31/Jan/21
![They know R^� =[−∞; ∞], so, where is (d/dx)(∞)=0 ? in R or in R^� ?](https://www.tinkutara.com/question/Q131047.png)
Commented by MJS_new last updated on 01/Feb/21
![(d/dx)[term without x]=0 if this is not clear, I can′t help](https://www.tinkutara.com/question/Q131051.png)