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Category: Differentiation

what-is-the-absolute-speed-of-A-that-moves-via-y-1-1-x-upper-part-when-it-crosses-y-axis-meanwhile-B-moves-at-constant-speed-of-1-the-x-axis-

Question Number 105300 by bobhans last updated on 27/Jul/20 $${what}\:{is}\:{the}\:{absolute}\:{speed}\:{of}\:{A}\:{that} \\ $$$${moves}\:{via}\:{y}\:=\:\frac{\mathrm{1}}{\mathrm{1}+{x}}\:\left({upper}\:{part}\right)\:{when} \\ $$$${it}\:{crosses}\:{y}\:−{axis}\:{meanwhile}\:{B} \\ $$$${moves}\:{at}\:{constant}\:{speed}\:{of}\:\mathrm{1}\:{the} \\ $$$${x}−{axis}\:? \\ $$ Terms of Service Privacy Policy…

Question-39747

Question Number 39747 by Raj Singh last updated on 10/Jul/18 Answered by tanmay.chaudhury50@gmail.com last updated on 10/Jul/18 $${y}=\frac{{x}^{\mathrm{2}} }{\mathrm{2}{a}−{x}}\:\:\:\frac{{dy}}{{dx}}=\frac{\left(\mathrm{2}{a}−{x}\right)\mathrm{2}{x}−{x}^{\mathrm{2}} \left(\mathrm{0}−\mathrm{1}\right)}{\left(\mathrm{2}{a}−{x}\right)^{\mathrm{2}} } \\ $$$$\frac{{dy}}{{dx}}=\frac{\mathrm{4}{ax}−\mathrm{2}{x}^{\mathrm{2}} +{x}^{\mathrm{2}} }{\left(\mathrm{2}{a}−{x}\right)^{\mathrm{2}}…

Question-105113

Question Number 105113 by yahyajan last updated on 26/Jul/20 Answered by Dwaipayan Shikari last updated on 26/Jul/20 $$\frac{{d}}{{dx}}\left({x}!\right)={y} \\ $$$${logx}+{log}\left({x}−\mathrm{1}\right)+{log}\left({x}−\mathrm{2}\right)+….={logy} \\ $$$$\frac{\mathrm{1}}{{x}}+\frac{\mathrm{1}}{{x}−\mathrm{1}}+….=\frac{\mathrm{1}}{{y}}\:\frac{{dy}}{{dx}} \\ $$$${x}!\left(\frac{\mathrm{1}}{{x}}+\frac{\mathrm{1}}{{x}−\mathrm{1}}+….\right)=\frac{{dy}}{{dx}} \\…

Find-min-value-f-x-x-4-x-5-x-6-x-7-

Question Number 170566 by cortano1 last updated on 27/May/22 $$\:\:\mathrm{Find}\:\mathrm{min}\:\mathrm{value}\: \\ $$$$\:\:{f}\left({x}\right)=\:\left({x}+\mathrm{4}\right)\left({x}+\mathrm{5}\right)\left({x}+\mathrm{6}\right)\left({x}+\mathrm{7}\right) \\ $$ Answered by som(math1967) last updated on 27/May/22 $$\left({x}+\mathrm{4}\right)\left({x}+\mathrm{7}\right)\left({x}+\mathrm{5}\right)\left({x}+\mathrm{6}\right) \\ $$$$\left({x}^{\mathrm{2}} +\mathrm{11}{x}+\mathrm{28}\right)\left({x}^{\mathrm{2}}…

Question-39475

Question Number 39475 by Raj Singh last updated on 06/Jul/18 Answered by tanmay.chaudhury50@gmail.com last updated on 07/Jul/18 $$\:{calculatiin}\:{of}\:{slope}\:{at}\:\left({a},{b}\right)\:{w}.{r}.{t}\:\frac{{x}}{{a}}+\frac{{y}}{{b}}=\mathrm{2}\:{is} \\ $$$$\frac{\mathrm{1}}{{a}}+\frac{\frac{{dy}}{{dx}}}{{b}}=\mathrm{0} \\ $$$$\frac{{dy}}{{dx}}=−\frac{{b}}{{a}} \\ $$$${calculation}\:{of}\:{slope}\:{w}.{r}.{t}\:\frac{{x}^{{n}} }{{a}^{{n}}…

Question-39470

Question Number 39470 by Raj Singh last updated on 06/Jul/18 Commented by maxmathsup by imad last updated on 07/Jul/18 $${x}^{\mathrm{2}} \:+{y}^{\mathrm{2}} \:=\mathrm{1}\:\Rightarrow{y}^{\mathrm{2}} =\mathrm{1}−{x}^{\mathrm{2}} \:\Rightarrow\mathrm{1}−{x}^{\mathrm{2}} \:=\mathrm{4}{x}−\mathrm{4}\:\Rightarrow{x}^{\mathrm{2}}…