Question Number 17520 by 1kanika# last updated on 07/Jul/17 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{coordinate}\:\mathrm{of}\:\mathrm{the}\:\mathrm{point}\:\mathrm{in} \\ $$$$\mathrm{R}\Lambda\mathrm{3}\:\mathrm{which}\:\mathrm{is}\:\mathrm{the}\:\mathrm{reflection}\:\mathrm{the}\:\mathrm{point} \\ $$$$\left(\mathrm{1},\mathrm{2},\mathrm{3}\right)\:\mathrm{with}\:\mathrm{respect}\:\mathrm{to}\:\mathrm{plane}\: \\ $$$$\mathrm{X}+\mathrm{Y}+\mathrm{Z}=\mathrm{1}\:. \\ $$ Commented by 1kanika# last updated on 07/Jul/17…
Question Number 83032 by Power last updated on 27/Feb/20 Answered by mr W last updated on 27/Feb/20 Commented by mr W last updated on 27/Feb/20…
Question Number 83030 by Power last updated on 27/Feb/20 Answered by mr W last updated on 27/Feb/20 Commented by mr W last updated on 27/Feb/20…
Question Number 148552 by cherokeesay last updated on 29/Jul/21 Commented by Tawa11 last updated on 29/Jul/21 $$\mathrm{good} \\ $$ Commented by cherokeesay last updated on…
Question Number 148540 by Jonathanwaweh last updated on 29/Jul/21 Answered by Olaf_Thorendsen last updated on 29/Jul/21 $$\mathrm{Formule}\:\mathrm{d}'\mathrm{Al}−\mathrm{Kashi}\:\left(\mathrm{generalisation}\right. \\ $$$$\mathrm{de}\:\mathrm{Pythagore}\:\mathrm{dans}\:\mathrm{un}\:\mathrm{triangle} \\ $$$$\left.\mathrm{quelconque}\right)\:: \\ $$$${c}^{\mathrm{2}} \:=\:{a}^{\mathrm{2}} +{b}^{\mathrm{2}}…
Question Number 148532 by cherokeesay last updated on 28/Jul/21 Answered by mr W last updated on 29/Jul/21 Commented by mr W last updated on 29/Jul/21…
Question Number 17449 by ajfour last updated on 06/Jul/17 $$\mathrm{Between}\:\mathrm{2}:\mathrm{00}\:\mathrm{and}\:\mathrm{2}:\mathrm{15},\:\mathrm{what}\:\mathrm{time} \\ $$$$\mathrm{is}\:\mathrm{it}\:\mathrm{exactly}\:\mathrm{when}\:\mathrm{the}\:\mathrm{hour}, \\ $$$$\mathrm{minute},\:\mathrm{and}\:\mathrm{second}'\mathrm{s}\:\mathrm{hand}\:\mathrm{of}\:\mathrm{a} \\ $$$$\mathrm{clock}\:\mathrm{occupy}\:\mathrm{the}\:\mathrm{same}\:\mathrm{angular} \\ $$$$\mathrm{position}. \\ $$$$ \\ $$ Commented by mrW1…
Question Number 17440 by virus last updated on 05/Jul/17 $$\mathrm{3}{x}−\mathrm{4}{y}=\mathrm{0},\mathrm{4}{y}−\mathrm{5}{z}=\mathrm{0},\mathrm{5}{z}−\mathrm{3}{x}=\mathrm{0} \\ $$$${then}\:{x},{y},{z}\:{is}\:{AP},{GP},{HP},{AGP}?????? \\ $$ Answered by sushmitak last updated on 06/Jul/17 $$\frac{{x}}{{y}}=\frac{\mathrm{4}}{\mathrm{3}}={k},\frac{{y}}{{z}}=\frac{\mathrm{5}}{\mathrm{4}} \\ $$$${x}=\mathrm{4}{k} \\…
Question Number 17373 by mrW1 last updated on 04/Jul/17 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{point}\:\mathrm{in}\:\mathrm{interior}\:\mathrm{of}\:\mathrm{a}\:\mathrm{convex} \\ $$$$\mathrm{quadrilateral}\:\mathrm{such}\:\mathrm{that}\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{its} \\ $$$$\mathrm{distances}\:\mathrm{to}\:\mathrm{the}\:\mathrm{4}\:\mathrm{vertices}\:\mathrm{is}\:\mathrm{minimal}. \\ $$$$ \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{point}\:\mathrm{in}\:\mathrm{interior}\:\mathrm{of}\:\mathrm{a}\:\mathrm{convex} \\ $$$$\mathrm{quadrilateral}\:\mathrm{such}\:\mathrm{that}\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{its} \\ $$$$\mathrm{distances}\:\mathrm{to}\:\mathrm{the}\:\mathrm{4}\:\mathrm{sides}\:\mathrm{is}\:\mathrm{minimal}. \\ $$ Answered…
Question Number 82901 by Power last updated on 25/Feb/20 Answered by mr W last updated on 26/Feb/20 Commented by Power last updated on 26/Feb/20 $$\mathrm{sir}\:\:\mathrm{a}:\mathrm{b}:\mathrm{c}=?…