Question Number 154401 by mathdanisur last updated on 18/Sep/21 $$\mathrm{prove}\:\mathrm{that}\:\mathrm{the}\:\mathrm{sum} \\ $$$$\mathrm{2}+\mathrm{2}^{\mathrm{2}} +\mathrm{2}^{\mathrm{3}} +\mathrm{2}^{\mathrm{4}} +…+\mathrm{2}^{\mathrm{2019}} +\mathrm{2}^{\mathrm{2020}} \\ $$$$\mathrm{is}\:\mathrm{divisible}\:\:\mathrm{by}\:\:\mathrm{30} \\ $$ Answered by talminator2856791 last updated…
Question Number 154400 by mathdanisur last updated on 18/Sep/21 $$\mathrm{x}\sqrt{\mathrm{y}}\:-\:\mathrm{y}\sqrt{\mathrm{x}}\:=\:\mathrm{82} \\ $$$$\mathrm{x}\sqrt{\mathrm{x}}\:+\:\mathrm{y}\sqrt{\mathrm{y}}\:=\:\mathrm{83} \\ $$$$\frac{\mathrm{9}}{\mathrm{5}}\:\centerdot\:\left(\mathrm{x}\:+\:\mathrm{y}\right)\:=\:? \\ $$ Answered by TheHoneyCat last updated on 20/Sep/21 $$\mathrm{just}\:\mathrm{so}\:\mathrm{you}\:\mathrm{understand}\:\mathrm{my}\:\mathrm{mess}\:\left(\mathrm{1}\right)\:\mathrm{will}\:\mathrm{be}\:\mathrm{the}\:\mathrm{first}\:\mathrm{equation}\:\mathrm{and}\:\left(\mathrm{2}\right)\:\mathrm{the}\:\mathrm{other} \\…
Question Number 88867 by liki last updated on 13/Apr/20 Commented by liki last updated on 13/Apr/20 $$..{help}\:{me}\:{please}\:{question}\:{roman}\:{i},{ii}\:\&\:{ii} \\ $$ Answered by TANMAY PANACEA. last updated…
Question Number 23330 by Tinkutara last updated on 28/Oct/17 $$\mathrm{The}\:\mathrm{number}\:\mathrm{of}\:\mathrm{ordered}\:\mathrm{pair}\left(\mathrm{s}\right)\:\left({x},\:{y}\right) \\ $$$$\mathrm{satisfying}\:\mathrm{the}\:\mathrm{equations}\:\mathrm{sin}{x}.\mathrm{cos}{y}\:=\:\mathrm{1} \\ $$$$\mathrm{and}\:{x}^{\mathrm{2}} \:+\:{y}^{\mathrm{2}} \:\leqslant\:\mathrm{9}\pi^{\mathrm{2}} \:\mathrm{is}/\mathrm{are} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 154402 by mr W last updated on 18/Sep/21 $${dear}\:{tinku}\:{tara}: \\ $$$${can}\:{you}\:{stop}\:{this}\:{guy}\:{who}\:{continuously} \\ $$$${misuses}\:{the}\:{forum}\:{for}\:{his}\:{own} \\ $$$${purposes},\:{but}\:{not}\:{for}\:{exchanging}\:{with} \\ $$$${others}.\:{he}\:{doesn}'{t}\:{answer}\:{any}\:{request} \\ $$$${of}\:{other}\:{people}\:{in}\:{english}\:{or}\:{even}\:{in} \\ $$$${his}\:{native}\:{language}.\:{he}\:{ignores}\:{that} \\ $$$${other}\:{people}\:{red}\:{flag}\:{his}\:{posts}.…
Question Number 88865 by tw000001 last updated on 13/Apr/20 Commented by tw000001 last updated on 13/Apr/20 $$\mathrm{I}\:\mathrm{don}'\mathrm{t}\:\mathrm{know}\:\mathrm{who}\:\mathrm{the}\:\mathrm{question}\:\mathrm{can}\:\mathrm{solve}. \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 154396 by DELETED last updated on 18/Sep/21 Answered by DELETED last updated on 18/Sep/21 $$\mathrm{f}\left(\mathrm{x}\right)=\frac{\mathrm{1}}{\mathrm{3}}\mathrm{x}^{\mathrm{3}} −\mathrm{500x}^{\mathrm{2}} +\mathrm{6000}.\mathrm{000} \\ $$$$\frac{\mathrm{dy}}{\mathrm{dx}}=\mathrm{x}^{\mathrm{2}} −\mathrm{1000x} \\ $$$$\mathrm{syarat}\:\mathrm{maximum}\:,\:\frac{\mathrm{dy}}{\mathrm{dx}}=\mathrm{0} \\…
Question Number 88863 by M±th+et£s last updated on 13/Apr/20 $$\int\frac{\mathrm{8}{cos}^{\mathrm{3}} \left({x}\right)}{\mathrm{8}+{sin}^{\mathrm{3}} \mathrm{2}{x}}{dx} \\ $$$$ \\ $$ Commented by MJS last updated on 13/Apr/20 $$\mathrm{I}\:\mathrm{tried}\:\mathrm{everything}\:\mathrm{I}\:\mathrm{know},\:\mathrm{seems}\:\mathrm{impossible} \\…
Question Number 88860 by M±th+et£s last updated on 13/Apr/20 Commented by M±th+et£s last updated on 13/Apr/20 $${find}\:{the}\:{blue}\:{area}\: \\ $$ Commented by mahdi last updated on…
Question Number 154398 by DELETED last updated on 18/Sep/21 Answered by DELETED last updated on 18/Sep/21 $$\left.\mathrm{2}\right).\:\overset{\mathrm{6}} {\:}\mathrm{P}_{\mathrm{3}} \:=\:\frac{\mathrm{6}!}{\left(\mathrm{6}−\mathrm{3}\right)!}\:=\:\frac{\mathrm{6}!}{\mathrm{3}!}\:=\frac{\mathrm{6}×\mathrm{5}×\mathrm{4}×\mathrm{3}!}{\mathrm{3}!} \\ $$$$\:\:\:\:\:\:\:\:\:\:=\mathrm{6}×\mathrm{5}×\mathrm{4} \\ $$$$\:\:\:\:\:\mathrm{yg}\:>\mathrm{400}\:\mathrm{ada}:\:\mathrm{3}×\mathrm{5}×\mathrm{4}=\mathrm{60}\:\mathrm{buah} \\ $$$$\:\mathrm{Jawaban}:\:\mathrm{B}…