Question Number 104676 by qwertyu last updated on 23/Jul/20 Commented by Dwaipayan Shikari last updated on 23/Jul/20 $${cos}\mathrm{36}°+{cos}\mathrm{108}°={cos}\mathrm{36}°−{cos}\mathrm{72}° \\ $$$$=\frac{\sqrt{\mathrm{5}}+\mathrm{1}}{\mathrm{4}}−\frac{\sqrt{\mathrm{5}}−\mathrm{1}}{\mathrm{4}}=\frac{\mathrm{1}}{\mathrm{2}} \\ $$ Commented by OlafThorendsen…
Question Number 104657 by bobhans last updated on 23/Jul/20 $$\left({x}+{yi}\right)^{\mathrm{3}} \:=\:\frac{\mathrm{10}\left(\mathrm{2}{y}+\mathrm{8}{i}\right)^{\mathrm{2}} }{\mathrm{3}−{i}} \\ $$$${find}\:{x}\:\&\:{y} \\ $$ Answered by bramlex last updated on 23/Jul/20 $$\left({x}+{yi}\right)^{\mathrm{3}} \:=\:\frac{\mathrm{10}\left(\mathrm{2}{y}+\mathrm{8}{i}\right)^{\mathrm{2}}…
Question Number 170185 by mathlove last updated on 18/May/22 Commented by MJS_new last updated on 18/May/22 $${x}=\mathrm{0} \\ $$$${x}\approx.\mathrm{874961088208} \\ $$ Terms of Service Privacy…
Question Number 170187 by infinityaction last updated on 18/May/22 Commented by MJS_new last updated on 18/May/22 $$\mathrm{it}'\mathrm{s}\:\mathrm{a}\:\mathrm{number}\:\mathrm{with}\:\mathrm{609}\:\mathrm{digits}\:\mathrm{starting}\:\mathrm{with} \\ $$$$\mathrm{550355}…\:\mathrm{and}\:\mathrm{ending}\:\mathrm{with}\:…\mathrm{570632} \\ $$ Commented by infinityaction last…
Question Number 104621 by ajfour last updated on 22/Jul/20 $$\frac{\mathrm{1}}{\left(\mathrm{1}−{x}\right)^{\mathrm{2}} }−\frac{\mathrm{4}}{\left(\mathrm{1}+{x}\right)^{\mathrm{2}} }=\mathrm{1} \\ $$ Answered by prakash jain last updated on 22/Jul/20 $$\left(\mathrm{1}+{x}\right)^{\mathrm{2}} −\mathrm{4}\left(\mathrm{1}−{x}\right)^{\mathrm{2}} =\left(\mathrm{1}−\mathrm{2}{x}+{x}^{\mathrm{2}}…
Question Number 170148 by Shrinava last updated on 17/May/22 Answered by mr W last updated on 20/May/22 Commented by mr W last updated on 20/May/22…
Question Number 170131 by mathlove last updated on 17/May/22 $$\mathrm{4}^{\mid{x}\mid} ={x}^{\mathrm{4}} \\ $$$${x}=? \\ $$ Answered by mr W last updated on 17/May/22 $$\mid{x}\mid={t}>\mathrm{0} \\…
Question Number 39053 by jasno91 last updated on 02/Jul/18 Answered by $@ty@m last updated on 02/Jul/18 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 104588 by M±th+et+s last updated on 22/Jul/20 $${solve}\:{in}\:\mathbb{R} \\ $$$$\frac{\mathrm{96}{x}−\mathrm{24}}{\mathrm{12}{x}+\mathrm{5}}=\sqrt{−\mathrm{144}{x}^{\mathrm{2}} +\mathrm{72}{x}+\mathrm{7}} \\ $$ Commented by M±th+et+s last updated on 22/Jul/20 $${thanks}\:{both}\:{for}\:{solutions} \\ $$…
Question Number 170117 by mathlove last updated on 16/May/22 $${x}^{\mathrm{2}} =\mathrm{4}^{{x}} \:\:\:\:\:\:{x}=? \\ $$$$ \\ $$$$ \\ $$ Commented by mathlove last updated on 16/May/22…