Question Number 124726 by joki last updated on 05/Dec/20
Answered by MJS_new last updated on 05/Dec/20
$${x}=\frac{\mathrm{1}}{\mathrm{2}}\wedge{y}=−\mathrm{1} \\ $$
Commented by joki last updated on 05/Dec/20
$${l}\:{dont}\:{understand}\:{sir}\:{with}\:{your}\:{answer}. \\ $$
Commented by MJS_new last updated on 05/Dec/20
$${x}\:\mathrm{is}\:\mathrm{equal}\:\mathrm{to}\:\frac{\mathrm{1}}{\mathrm{2}}\:\mathrm{and}\:{y}\:\mathrm{is}\:\mathrm{equal}\:\mathrm{to}\:−\mathrm{1}.\:\mathrm{sorry}\:\mathrm{but} \\ $$$$\mathrm{I}\:\mathrm{don}'\mathrm{t}\:\mathrm{understand}\:\mathrm{what}\:\mathrm{you}\:\mathrm{don}'\mathrm{t}\:\mathrm{understand}. \\ $$
Commented by JDamian last updated on 05/Dec/20
$$\wedge\:{stands}\:{for}\:\boldsymbol{{and}} \\ $$
Answered by ajfour last updated on 05/Dec/20
$$\frac{{x}}{{y}}={t} \\ $$$${y}\left({t}+\mathrm{1}\right)={ty}^{\mathrm{2}} ={t} \\ $$$${ty}^{\mathrm{2}} ={t} \\ $$$$\Rightarrow\:\:{y}^{\mathrm{2}} =\mathrm{1}\:\:\:{but} \\ $$$${t}+\mathrm{1}={ty}\:\:\:{dont}\:{fit}\:{for}\:{y}=\mathrm{1} \\ $$$$\Rightarrow\:\:{y}=−\mathrm{1} \\ $$$${t}=−\frac{\mathrm{1}}{\mathrm{2}}\:\:\Rightarrow\:{x}={ty}\:=\:\left(−\frac{\mathrm{1}}{\mathrm{2}}\right)\left(−\mathrm{1}\right)=\frac{\mathrm{1}}{\mathrm{2}} \\ $$$${x}=\frac{\mathrm{1}}{\mathrm{2}}\:,\:\:{y}=−\mathrm{1}\:. \\ $$$$ \\ $$