2017届河北省保定市高阳中学高三下学期周练（三十一）数学试题及答案

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1、河北省保定市高阳中学2014届高三下学期周练（三十一）数学试题1．=.2．函数的导函数.3．抛物线的焦点坐标是.4．一个几何体的三视图如图所示，则该几何体的体积等于.5．已知两条直线和互相垂直，则等于.6．在等腰直角三角形ABC中，在斜边AB上任取一点M，则AM>AC的概率是.7．如果实数满足不等式组，则的最小值为.8．阅读如图所示的程序框，若输入的是100，则输出的变量的值是.2222主视图左视图2俯视图第4题图结束输出S否是开始输入第8题图29．在△中,,,若,则=.10．设是正项数列，其前项和满足：,则数列的通项公式=.11．若函数()在上的最大

2、值为,则的值为.12.从椭圆上一点A看椭圆的两焦点的视角为直角，的延长线交椭圆于B，且，则椭圆的离心率为.答案1．2．3．（1，0）4．5．6．7．58．50499．9JWKffwvG#tYM*Jg&6a*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFyeQ^!djs#XuyUP2kNXpRWXmA&UE9aQ@Gn8xp$R#͑Gx^Gjqv^$UE9wEwZ#Qc@UE%&qYp@Eh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu##KN&MuWFA5ux

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