Question Number 140813 by mathdanisur last updated on 13/May/21 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 75280 by otchereabdullai@gmail.com last updated on 09/Dec/19 $$\mathrm{A}\:\mathrm{car}\:\mathrm{travels}\:\mathrm{at}\:\mathrm{a}\:\mathrm{constant}\:\mathrm{speed}\:\mathrm{and}\: \\ $$$$\mathrm{covers}\:\mathrm{240km}\:\mathrm{in}\:\mathrm{8hours}\:.\:\mathrm{How}\:\mathrm{far}\:\mathrm{does} \\ $$$$\mathrm{it}\:\mathrm{travel}\:\mathrm{at}\:\mathrm{the}\:\mathrm{same}\:\mathrm{speed}\:\mathrm{in}\:\mathrm{5hours} \\ $$$$ \\ $$ Answered by mr W last updated on…
Question Number 75276 by vishalbhardwaj last updated on 09/Dec/19 $$\mathrm{Write}\:\mathrm{the}\:\mathrm{formula}\:\mathrm{of}\:\mathrm{a}\:\mathrm{circle}\:\mathrm{if}\:\mathrm{coordinates} \\ $$$$\mathrm{of}\:\mathrm{ends}\:\mathrm{of}\:\mathrm{diameter}\:\mathrm{of}\:\mathrm{the}\:\mathrm{circle}\:\mathrm{are}\:\mathrm{given}\:? \\ $$ Commented by mr W last updated on 09/Dec/19 $$\left({x}−\frac{{x}_{\mathrm{1}} +{x}_{\mathrm{2}} }{\mathrm{2}}\right)^{\mathrm{2}}…
Question Number 75277 by otchereabdullai@gmail.com last updated on 09/Dec/19 $$\mathrm{The}\:\mathrm{scale}\:\mathrm{of}\:\mathrm{a}\:\mathrm{map}\:\mathrm{is}\:\mathrm{1}:\mathrm{40},\mathrm{000}\:.\:\mathrm{Calculate} \\ $$$$\mathrm{the}\:\mathrm{area}\:\mathrm{in}\:\mathrm{square}\:\mathrm{centimeters}\:\mathrm{on}\:\mathrm{the} \\ $$$$\mathrm{map}\:\mathrm{of}\:\mathrm{forest}\:\mathrm{reserved}\:\mathrm{which}\:\mathrm{covers}\: \\ $$$$\mathrm{170km}^{\mathrm{2}} . \\ $$$$\mathrm{please}\:\mathrm{help}\:\mathrm{solve}\:\mathrm{this}\:\mathrm{question} \\ $$ Answered by mr W…
Question Number 9734 by geovane10math last updated on 29/Dec/16 $${What}\:{is}\:{the}\:{group}\:\:\:\:\mathbb{Z}/\boldsymbol{{n}}\mathbb{Z}\:?? \\ $$ Commented by FilupSmith last updated on 29/Dec/16 $$\mathbb{Z}\:\mathrm{is}\:\mathrm{all}\:\mathrm{whole}\:\mathrm{numbers}. \\ $$$$\mathrm{e}.\mathrm{g}.\:\forall{x}\in\mathbb{R}\Rightarrow\lfloor{x}\rfloor\in\mathbb{Z} \\ $$$$\: \\…
Question Number 9727 by geovane10math last updated on 29/Dec/16 $$\mathrm{Find}\:\mathrm{a}\:\boldsymbol{{x}}\:{integer}: \\ $$$$\left[\underset{{k}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{sin}\left(\mathrm{2}\Pi{kx}\pi\right)}{{k}}\right]\:+\:\left[\underset{{k}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{sin}\left(\mathrm{2}\Pi{kxe}\right)}{{k}}\right]\:=\:\mathrm{0}\: \\ $$$$ \\ $$$$\boldsymbol{\mathrm{Where}}: \\ $$$$\boldsymbol{\Pi}\:\mathrm{represents}\:\mathrm{180}°\:; \\ $$$$\boldsymbol{\pi}\:\mathrm{represents}\:\mathrm{3},\mathrm{14159265358}…\:. \\…
Question Number 140749 by SOMEDAVONG last updated on 12/May/21 $$\underset{\mathrm{k}=\mathrm{1}} {\overset{\mathrm{n}} {\sum}}\mathrm{5}^{\frac{\mathrm{1}}{\mathrm{k}}} \left(\mathrm{1}−\mathrm{5}^{−\frac{\mathrm{1}}{\mathrm{k}\left(\mathrm{k}+\mathrm{1}\right)}} \right)=? \\ $$ Answered by Dwaipayan Shikari last updated on 12/May/21 $$\mathrm{5}^{\frac{\mathrm{1}}{{k}}}…
Question Number 9678 by ridwan balatif last updated on 23/Dec/16 Commented by ridwan balatif last updated on 23/Dec/16 $$\mathrm{let}\:\mathrm{x}\:\:\mathrm{and}\:\mathrm{y}\:\mathrm{is}\:\mathrm{real}\:\mathrm{number}\:\mathrm{that}\:\mathrm{x}+\mathrm{y}=\mathrm{2}.\:\mathrm{If} \\ $$$$\mathrm{the}\:\mathrm{minimum}\:\mathrm{value}\:\mathrm{of}\:\sqrt{\mathrm{16}+\mathrm{3x}^{\mathrm{2}} }+\mathrm{2}\sqrt{\mathrm{73}+\mathrm{3y}^{\mathrm{2}} }=\mathrm{m} \\ $$$$\mathrm{find}\:\mathrm{value}\:\mathrm{of}\:\mathrm{m}^{\mathrm{2}}…
Question Number 140750 by SOMEDAVONG last updated on 12/May/21 $$\underset{\mathrm{k}=\mathrm{0}} {\overset{\mathrm{n}} {\sum}}\mathrm{cos}^{\mathrm{3}} \mathrm{k}=? \\ $$ Answered by Dwaipayan Shikari last updated on 12/May/21 $$\mathrm{4}{cos}^{\mathrm{3}} {k}−\mathrm{3}{cosk}={cos}\mathrm{3}{k}\Rightarrow{cos}^{\mathrm{3}}…
Question Number 9677 by ridwan balatif last updated on 23/Dec/16 Commented by geovane10math last updated on 23/Dec/16 $${An}\:{acute}\:{angle}\:{can}\:{not}\:{measure}\:\mathrm{129}° \\ $$$$\mathrm{51}°\:+\:\mathrm{78}°\:=\:\mathrm{129}° \\ $$ Commented by ridwan…