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d-dx-or-

Question Number 131007 by Study last updated on 31/Jan/21 $$\frac{{d}}{{dx}}\left(\infty\right)=?\:\:\:\:\:{or}\:\:\:\left(\infty\right)'=? \\ $$ Answered by Boucatchou last updated on 31/Jan/21 $$\infty\:{is}\:{unknown},\:{so}\:\:{they}\:\:{can}'{t}\:\:{do}\:\:{such}\:\:{operations}.. \\ $$ Answered by MJS_new…

10-x-x-1000-x-

Question Number 65446 by LPM last updated on 30/Jul/19 $$\:\:\:\:\mathrm{10}^{\mathrm{x}} \:=\:\mathrm{x}^{\mathrm{1000}} \:\Rightarrow\:\mathrm{x}=? \\ $$ Commented by MJS last updated on 30/Jul/19 $${a}^{{x}} ={x}^{{b}} \\ $$$${x}\mathrm{ln}\:{a}\:={b}\mathrm{ln}\:{x}…

Question-130946

Question Number 130946 by help last updated on 30/Jan/21 Answered by mathmax by abdo last updated on 30/Jan/21 $$\mathrm{u}_{\mathrm{n}} =\frac{\sqrt{\mathrm{n}^{\mathrm{4}} −\mathrm{2n}^{\mathrm{3}} }−\mathrm{n}^{\mathrm{2}} }{\mathrm{n}+\mathrm{2}}\:\Rightarrow\mathrm{u}_{\mathrm{n}} =\frac{\sqrt{\mathrm{n}^{\mathrm{4}} \left(\mathrm{1}−\frac{\mathrm{2}}{\mathrm{n}}\right)}−\mathrm{n}^{\mathrm{2}}…