Give All Solutions of the Nonlinear System of Equations, Including $\begin{array} { l } x y = 1 \\28 x - y = 3\end{array}$

question 184

Multiple Choice

Give all solutions of the nonlinear system of equations, including those with nonreal complex components.
$\begin{array} { l } x y = 1 \\28 x - y = 3\end{array}$

• A) \(\left\{ \left( - \frac { 1 } { 7 } , - 7 \right) , \left( \frac { 1 } { 4 } , 4 \right) \right\}\)
• B) \(\left\{ \left( \frac { 1 } { 4 } , 4 \right) \right\}\)
• C) \(\{ ( 7 , - 7 ) , ( - 4,4 ) \}\)
• D) \(\left\{ \left( - 7 , - \frac { 1 } { 7 } \right) , \left( 4 , \frac { 1 } { 4 } \right) \right\}\)

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