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设f(x)是定义在R上的增函数,且对于任意的x都有f(1﹣x)+f(1+x)=0恒成立.如果实数m、n满足不等式组http://picflow.koolearn.com/upload/papers/g02/20120822/201208221623472054400.png,那么m2+n2的取值范围是(  )  

发布时间:2021-07-16

A.(3,7)

B.(9,25)

C.(13,49)

D.(9,49)

试卷相关题目

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    A.http://picflow.koolearn.com/upload/papers/g02/20120823/20120823125543584630.png

    B.2

    C.4

    D.6

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  • 2设双曲线x2﹣y2=1的两条渐近线与直线x=http://picflow.koolearn.com/upload/papers/g02/20120827/201208270945073211042.png围成的三角形区域(包含边界)为E,P(x,y)为该区域内的一个动点,则目标函数z=3x﹣2y的取值范围为

    A.[http://picflow.koolearn.com/upload/papers/g02/20120827/201208270945073511409.png]

    B.[http://picflow.koolearn.com/upload/papers/g02/20120827/201208270945073812097.png]

    C.[http://picflow.koolearn.com/upload/papers/g02/20120827/201208270945074112090.png]

    D.[http://picflow.koolearn.com/upload/papers/g02/20120827/201208270945074411675.png]

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  • 3已知变量x,y满足约束条件http://picflow.koolearn.com/upload/papers/g02/20120821/201208211706409883218.png,则z=2xhttp://picflow.koolearn.com/upload/papers/g02/20120821/20120821170641034171.png4y的最大值为

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  • 4设变量x,y满足约束条件http://picflow.koolearn.com/upload/papers/g02/20120816/201208161810082073284.png则目标函数z=x+2y的最小值为

    A.2

    B.3

    C.5

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  • 5若实数x,y满足不等式组合http://picflow.koolearn.com/upload/papers/g02/20120829/201208291622443234831.png则x+y的最大值为  

    A.9

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  • 6已知x,y满足http://picflow.koolearn.com/upload/papers/g02/20120820/201208200850282783115.png则2x﹣y的取值范围是

    A.[﹣6,0]

    B.[﹣5,﹣1]

    C.[﹣6,﹣1]

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    A.8

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    A.http://picflow.koolearn.com/upload/papers/g02/20120817/20120817174839236973.png

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