Give All Solutions of the Nonlinear System of Equations, Including $$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 1 \\x + y = 1\end{array}$$

question 27

Multiple Choice

Give all solutions of the nonlinear system of equations, including those with nonreal complex components.
- $$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 1 \\x + y = 1\end{array}$$

• A) \(\{ ( 1,0 ) , ( 0 , - 1 ) \}\)
• B) \(\{ ( 1,0 ) , ( 0,1 ) \}\)
• C) \(\{ ( - 1,0 ) , ( 0,1 ) \}\)
• D) \(\{ ( - 1,0 ) , ( 0 , - 1 ) \}\)

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