Question Number 147914 by mnjuly1970 last updated on 24/Jul/21 $$ \\ $$$$\:\:{f}\:\left({x}\:\right):=\:\mathrm{3}{x}\:+\left[\:\frac{{x}}{\mathrm{4}}\:\right]\:\:,\:\mathrm{D}_{\:{f}} \:=\left[\:\mathrm{0},\infty\right) \\ $$$$\:\:\:\:\:\:\:\:\:{f}^{\:−\mathrm{1}} \left(\:{x}\:\right)=\:? \\ $$$$ \\ $$ Terms of Service Privacy Policy…
Question Number 16836 by tawa tawa last updated on 26/Jun/17 $$\mathrm{Find}\:\mathrm{how}\:\mathrm{many}\:\mathrm{number}\:\mathrm{greater}\:\mathrm{than}\:\mathrm{2},\mathrm{500}\:\mathrm{can}\:\mathrm{be}\:\mathrm{formed}\:\mathrm{from}\:\mathrm{the}\:\mathrm{digit} \\ $$$$\mathrm{0},\:\mathrm{1},\:\mathrm{2},\:\mathrm{3},\:\mathrm{4}\:\:\mathrm{if}\:\mathrm{no}\:\mathrm{digit}\:\mathrm{can}\:\mathrm{be}\:\mathrm{used}\:\mathrm{more}\:\mathrm{than}\:\mathrm{once}. \\ $$ Answered by mrW1 last updated on 27/Jun/17 $$\mathrm{2}×\mathrm{4}×\mathrm{3}×\mathrm{2}=\mathrm{48} \\ $$…
Question Number 147876 by puissant last updated on 24/Jul/21 Answered by Olaf_Thorendsen last updated on 24/Jul/21 $$\mathrm{On}\:\mathrm{raisonne}\:\mathrm{par}\:\mathrm{recurrence}. \\ $$$$ \\ $$$$\mathrm{On}\:\mathrm{considere}\:\mathrm{la}\:\mathrm{propriete}\:\mathrm{suivante}\:: \\ $$$$ \\ $$$$“\mathrm{Si}\:\mathrm{on}\:\mathrm{retire}\:\mathrm{une}\:\mathrm{case}\:\mathrm{quelconque}…
Question Number 147654 by ArielVyny last updated on 22/Jul/21 Commented by ArielVyny last updated on 22/Jul/21 $${exercice}\:\mathrm{11} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 147524 by SLVR last updated on 21/Jul/21 Commented by SLVR last updated on 21/Jul/21 $${kindly}\:{help} \\ $$ Commented by Rasheed.Sindhi last updated on…
Question Number 146824 by alcohol last updated on 16/Jul/21 Answered by Olaf_Thorendsen last updated on 16/Jul/21 $$\mathrm{1}− \\ $$$${w}\:=\:{e}^{\frac{\mathrm{2}{i}\pi}{{n}}} \\ $$$$\mathrm{Let}\:{z}_{{n}} \:=\:\mathrm{1}+{w}+{w}^{\mathrm{2}} +…{w}^{{n}−\mathrm{1}} \\ $$$${z}_{{n}}…
Question Number 145944 by alcohol last updated on 09/Jul/21 Commented by alcohol last updated on 10/Jul/21 $${no}\:{body}? \\ $$ Answered by mathmax by abdo last…
Question Number 145863 by bramlexs22 last updated on 09/Jul/21 Answered by mr W last updated on 09/Jul/21 Commented by mr W last updated on 09/Jul/21…
Question Number 79838 by ihsanasfa2@gmail.com last updated on 28/Jan/20 $$\because \\ $$ Answered by $@ty@m123 last updated on 28/Jan/20 $$\therefore \\ $$ Terms of Service…
Question Number 145104 by imjagoll last updated on 02/Jul/21 $$\:\mathrm{If}\:\frac{!\mathrm{6}}{\mathrm{x}}\:−!\mathrm{4}\:=\:!\mathrm{x}\:\mathrm{then}\:\mathrm{x}\:=? \\ $$ Answered by liberty last updated on 02/Jul/21 $$\:\Rightarrow\:\mathrm{265}−\mathrm{9}{x}\:=\:{x}.\left(!{x}\right) \\ $$$${test}\:{x}=\mathrm{5}\: \\ $$$$\Rightarrow\mathrm{265}−\mathrm{45}\:=\:\mathrm{220}\:\wedge\:\mathrm{5}.\left(!\mathrm{5}\right)=\mathrm{5}×\mathrm{44}=\mathrm{220} \\…