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d-dx-or-




Question Number 131007 by Study last updated on 31/Jan/21
(d/dx)(∞)=?     or   (∞)′=?
ddx()=?or()=?
Answered by Boucatchou last updated on 31/Jan/21
∞ is unknown, so  they  can′t  do  such  operations..
isunknown,sotheycantdosuchoperations..
Answered by MJS_new last updated on 31/Jan/21
x is the variable, ∞ is a constant  ⇒ ∞′=0
xisthevariable,isaconstant=0
Commented by MJS_new last updated on 31/Jan/21
f(x)=c  (d/dx)[lim_(c→∞)  c]=0
f(x)=cddx[limcc]=0
Commented by JDamian last updated on 31/Jan/21
But  ∞  is not a number
Butisnotanumber
Commented by MJS_new last updated on 31/Jan/21
but (d/dx)[anything without x]=0
butddx[anythingwithoutx]=0
Commented by Boucatchou last updated on 31/Jan/21
They know  R^� =[−∞; ∞], so, where is  (d/dx)(∞)=0 ?  in R  or  in  R^�  ?
TheyknowR¯=[;],so,whereisddx()=0?inRorinR¯?
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
ddx[termwithoutx]=0ifthisisnotclear,Icanthelp

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