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Eliminate-t-from-this-equation-1-x-1-t-y-1-1-t-2-x-3-t-3-y-2-1-t-




Question Number 49570 by Tawa1 last updated on 07/Dec/18
Eliminate  t  from this equation:  (1)   x = 1 + t,   y = 1 + (1/t)  (2)  x = 3 + t^3  ,     y = 2 + (1/t)
$$\mathrm{Eliminate}\:\:\boldsymbol{\mathrm{t}}\:\:\mathrm{from}\:\mathrm{this}\:\mathrm{equation}:\:\:\left(\mathrm{1}\right)\:\:\:\mathrm{x}\:=\:\mathrm{1}\:+\:\mathrm{t},\:\:\:\mathrm{y}\:=\:\mathrm{1}\:+\:\frac{\mathrm{1}}{\mathrm{t}} \\ $$$$\left(\mathrm{2}\right)\:\:\mathrm{x}\:=\:\mathrm{3}\:+\:\mathrm{t}^{\mathrm{3}} \:,\:\:\:\:\:\mathrm{y}\:=\:\mathrm{2}\:+\:\frac{\mathrm{1}}{\mathrm{t}} \\ $$
Answered by afachri last updated on 07/Dec/18
1)  t = x − 1         so,                              y = 1 + (( 1 )/( x − 1 ))                 (y − 1)(x−1) = 1    2) t = ^3 (√( x − 3 ))          so,                     y  =  2 + (1/( ((x − 3 ))^(1/3) ))                        (y − 2) =  (( 1 )/( ((x − 3 ))^(1/3) ))      (y − 2)((x − 3 ))^(1/3)   =  1    (y − 2)^3 (x − 3) = 1
$$\left.\mathrm{1}\right)\:\:{t}\:=\:{x}\:−\:\mathrm{1} \\ $$$$\:\:\:\:\:\:\:\mathrm{so},\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:{y}\:=\:\mathrm{1}\:+\:\frac{\:\mathrm{1}\:}{\:{x}\:−\:\mathrm{1}\:} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\left({y}\:−\:\mathrm{1}\right)\left({x}−\mathrm{1}\right)\:=\:\mathrm{1} \\ $$$$ \\ $$$$\left.\mathrm{2}\right)\:{t}\:=\:\:^{\mathrm{3}} \sqrt{\:{x}\:−\:\mathrm{3}\:}\: \\ $$$$\:\:\:\:\:\:\:\mathrm{so},\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:{y}\:\:=\:\:\mathrm{2}\:+\:\frac{\mathrm{1}}{\:\sqrt[{\mathrm{3}}]{{x}\:−\:\mathrm{3}\:}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\left({y}\:−\:\mathrm{2}\right)\:=\:\:\frac{\:\mathrm{1}\:}{\:\sqrt[{\mathrm{3}}]{{x}\:−\:\mathrm{3}\:}} \\ $$$$\:\:\:\:\left({y}\:−\:\mathrm{2}\right)\sqrt[{\mathrm{3}}]{{x}\:−\:\mathrm{3}\:}\:\:=\:\:\mathrm{1} \\ $$$$\:\:\left({y}\:−\:\mathrm{2}\right)^{\mathrm{3}} \left({x}\:−\:\mathrm{3}\right)\:=\:\mathrm{1} \\ $$
Commented by afachri last updated on 08/Dec/18
:′)  thumb′s up
$$\left.:'\right)\:\:\mathrm{thumb}'\mathrm{s}\:\mathrm{up} \\ $$
Commented by Tawa1 last updated on 07/Dec/18
God bless you sir
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$

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