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已知x、y满足不等式组,则t=x2+y2+2x-2y+2的最小值为A.B.5C.2D.
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已知x、y满足不等式组
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADgAAAA/CAYAAAC1gwumAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
,则t=x
2+y
2+2x-2y+2的最小值为( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
B.5
C.2
D.
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