Question Number 166261 by gadafi last updated on 16/Feb/22 $${If}\:{four}\:{men}\:{can}\:{dig}\:{a}\:{piece}\:{of}\:{land}\:{in}\:\mathrm{2}{days}\:{at}\:{eight}\:{hours}\:{everyday}.{How}\:{many}\:{days}\:{can}\:{two}\:{men}\:{dig}\:{in}\:{every}\:{six}\:{hours}\:{perday}? \\ $$ Commented by 1549442205PVT last updated on 17/Feb/22 $${you}\:{should}\:{write}\:{your}\:{post}\:{like}\:{this} \\ $$$${so}\:{it}\:{is}\:{easy}\:{for}\:{people}\:{to}\:{read}. \\ $$$${If}\:{four}\:{men}\:{can}\:{dig}\:{a}\:{piece}\:{of}\:{land}\: \\…
Question Number 100703 by bramlex last updated on 28/Jun/20 Commented by bramlex last updated on 28/Jun/20 $$\left(\mathrm{1}\right)\:\mathrm{2}{y}^{\mathrm{2}} \:=\:\mathrm{100}−\mathrm{40}{a}+\mathrm{4}{a}^{\mathrm{2}} \\ $$$$\left(\mathrm{2}\right)\:\mathrm{16}\:=\:\frac{\mathrm{1}}{\mathrm{2}}{y}^{\mathrm{2}} \:\Rightarrow{y}^{\mathrm{2}} =\:\mathrm{32} \\ $$$$\left(\mathrm{1}\right)\wedge\left(\mathrm{2}\right)\:\Rightarrow\mathrm{4}{a}^{\mathrm{2}} −\mathrm{40}{a}+\mathrm{100}=\mathrm{64}\:…
Question Number 166234 by ajfour last updated on 15/Feb/22 $$\:\:\mathrm{sin}^{−\mathrm{1}} \frac{{a}}{\mathrm{2}{R}}+\mathrm{sin}^{−\mathrm{1}} \frac{{b}}{\mathrm{2}{R}}+\mathrm{sin}^{−\mathrm{1}} \frac{{c}}{\mathrm{2}{R}}=\frac{\pi}{\mathrm{4}} \\ $$$${find}\:{R}\:{n}\:{terms}\:{of}\:{a},{b},{c}. \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 35152 by Victor31926 last updated on 16/May/18 Commented by Rasheed.Sindhi last updated on 16/May/18 $$\mathrm{x}+\mathrm{y}+\mathrm{z}=\mathrm{1}……………\mathrm{I} \\ $$$$\mathrm{x}^{\mathrm{2}} +\mathrm{y}^{\mathrm{2}} +\mathrm{z}^{\mathrm{2}} =\mathrm{35}……….\mathrm{II} \\ $$$$\mathrm{x}^{\mathrm{3}} +\mathrm{y}^{\mathrm{3}}…
Question Number 35153 by Victor31926 last updated on 16/May/18 Answered by Rasheed.Sindhi last updated on 16/May/18 $$\mathrm{2}=\mathrm{x}+\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+….}}} \\ $$$$\mathrm{2}−\mathrm{x}=\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+….}}} \\ $$$$\left(\mathrm{2}−\mathrm{x}\right)^{\mathrm{2}} =\left(\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+….}}}\right)^{\mathrm{2}} \\ $$$$\mathrm{4}−\mathrm{4x}+\mathrm{x}^{\mathrm{2}} =\mathrm{x}+\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+\sqrt{\mathrm{x}+….}}}…
Question Number 166215 by mathlove last updated on 15/Feb/22 Answered by nurtani last updated on 15/Feb/22 $$\bullet\:\mathrm{27}^{{x}} −\mathrm{27}^{{y}} \:=\:\mathrm{24}\:\Leftrightarrow\:\mathrm{3}^{\mathrm{3}{x}} −\mathrm{3}^{\mathrm{3}{y}} \:=\:\mathrm{24}\:\Leftrightarrow\:\left(\mathrm{3}^{{x}} \right)^{\mathrm{3}} −\left(\mathrm{3}^{{y}} \right)^{\mathrm{3}} =\:\mathrm{24}…
Question Number 100660 by bobhans last updated on 28/Jun/20 $$\mid{x}^{\mathrm{2}} −{x}\mid\:<\:\mathrm{2}+{x}\:.\:{find}\:{solution}\:{set}. \\ $$ Commented by bramlex last updated on 28/Jun/20 $${since}\:\mid{x}^{\mathrm{2}} −{x}\mid\:\geqslant\mathrm{0}\:{then}\:\mathrm{2}+{x}\:{must}\:{be}\:>\mathrm{0} \\ $$$$\left(\mathrm{1}\right)\:\mathrm{2}+{x}\:>\:\mathrm{0}\:;\:{x}\:>−\mathrm{2} \\…
Question Number 166195 by mathlove last updated on 15/Feb/22 Answered by alephzero last updated on 15/Feb/22 $${x}\:=\:\mathrm{1} \\ $$ Commented by mathlove last updated on…
Question Number 166181 by amin96 last updated on 14/Feb/22 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 166182 by SANOGO last updated on 14/Feb/22 $${calculer}\:{la}\:{primitive}\:{de} \\ $$$$\int\frac{{t}^{\mathrm{2}} }{\left(\mathrm{1}+{t}^{\mathrm{2}} \right)^{\mathrm{2}} }{dt} \\ $$ Answered by greogoury55 last updated on 14/Feb/22 $${t}=\mathrm{tan}\:{u}…