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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
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACRSURBVDhP3VPbDcAgCGQydmIdlmEUR6E+W6yo
P6YfNTEm5HJc7k7QzYGDgMCKgMqh5ywrhBQA4p0BCkrp54BsUvKhXJLHrJNZTGLdr2jCvDeR7hnO
NSow3kYBsrZiVQ2xLGZo196Vs/a+AEEZWw4Ui+eVts6ExuIOPmSxZp9jVC/YB6wYhPrPA7po09dh
zWK/AMs974HIA8HSAAAAAElFTkSuQmCC
)
B.5
C.2
D.
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