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平面几何(崇文·理·题3)已知SKIPIF1<0是SKIPIF1<0的切线,切点为SKIPIF1<0,SKIPIF1<0,SKIPIF1<0是SKIPIF1<0的直径,SKIPIF1<0交SKIPIF1<0于点SKIPIF1<0,SKIPIF1<0,则SKIPIF1<0的半径为()A.SKIPIF1<0

B.SKIPIF1<0

C.SKIPIF1<0

D.SKIPIF1<0C;SKIPIF1<0于是圆的半径为SKIPIF1<0.(东城·理·题3)如图,已知SKIPIF1<0是⊙SKIPIF1<0的一条弦,点SKIPIF1<0为SKIPIF1<0上一点,SKIPIF1<0,SKIPIF1<0交⊙SKIPIF1<0于SKIPIF1<0,若SKIPIF1<0,SKIPIF1<0,则SKIPIF1<0的长是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0B;延长SKIPIF1<0交于圆上一点,得到一条圆的弦,易知SKIPIF1<0点为该弦的中点,有SKIPIF1<0.(丰台·理·题9)在平行四边形SKIPIF1<0中,点SKIPIF1<0是边SKIPIF1<0的中点,SKIPIF1<0与SKIPIF1<0交于点SKIPIF1<0,若SKIPIF1<0的面积是SKIPIF1<0SKIPIF1<0,则SKIPIF1<0的面积是SKIPIF1<0.4;取SKIPIF1<0的中点SKIPIF1<0,连结SKIPIF1<0交SKIPIF1<0于SKIPIF1<0,则∵SKIPIF1<0且SKIPIF1<0,∴四边形SKIPIF1<0为平行四边形∴SKIPIF1<0∴SKIPIF1<0(海淀·理·题10)如图,SKIPIF1<0为SKIPIF1<0的直径,且SKIPIF1<0,SKIPIF1<0为SKIPIF1<0的中点,过SKIPIF1<0作SKIPIF1<0的弦SKIPIF1<0,且SKIPIF1<0,则弦SKIPIF1<0的长度为.7;由SKIPIF1<0得SKIPIF1<0.由已知和相交弦定理得SKIPIF1<0,解得SKIPIF1<0.于是SKIPIF1<0.(石景山·理·题10)已知曲线SKIPIF1<0的参数方程为SKIPIF1<0SKIPIF1<0,则曲线SKIPIF1<0的普通方程是;点SKIPIF1<0在曲线SKIPIF1<0上,点SKIPIF1<0在平面区域SKIPIF1<0上,则SKIPIF1<0的最小值是.SKIPIF1<0,SKIPIF1<0;SKIPIF1<0是圆SKIPIF1<0;不等式组的可行域如图阴影所示,SKIPIF1<0点为SKIPIF1<0、SKIPIF1<0为SKIPIF1<0时,SKIPIF1<0最短,长度是SKIPIF1<0.(西城·理·题12)如图,SKIPIF1<0切SKIPIF1<0于点SKIPIF1<0,割线SKIPIF1<0经过圆心SKIPIF1<0,弦SKIPIF1<0于点SKIPIF1<0.已知SKIPIF1<0的半径为3,SKIPIF1<0,则SKIPIF1<0.SKIPIF1<0.SKIPIF1<0;SKIPIF1<0;连结SKIPIF1<0,知SKIPIF1<0,于是SKIPIF1<0,SKIPIF1<0.(宣武·理·题11)若SKIPIF1<0是SKIPIF1<0上三点,SKIPIF1<0切SKIPIF1<0于点SKIPIF1<0,SKIPIF1<0,则SKIPIF1<0的大小为.SKIPIF1<0;如图,弦切角SKIPIF1<0,于是SKIPIF1<0,从而SKIPIF1<0.(朝阳·理·题12)如图,圆SKIPIF1<0是SKIPIF1<0的外接圆,过点SKIPIF1<0的切线交SKIPIF1<0的延长线于点SKIPIF1<0,SKIPIF1<0,则SKIPIF1<0的长为;SKIPIF1<0的长为.SKIPIF1<0.SKIPIF1<0.又由SKIPIF1<0知SKIPIF1<0.于是SKIPIF1<0.即SKIPIF1<0.(西城·理·题12)如图,SKIPIF1<0切SKIPIF1<0于点SKIPIF1<0,割线SKIPIF1<0经过圆心SKIPIF1<0,弦SKIPIF1<0于点SKIPIF1<0.已知SKIPIF1<0的半径为3,SKIPIF1<0,则SKIPIF1<0.SKIPIF1<0.SKIPIF1<0;SKIPIF1<0;连结SKIPIF1<0,知SKIPIF1<0,于是SKIPIF1<0,SKIPIF1<0.坐标系与参数方程(海淀·理·题4)在平面直角坐标系SKIPIF1<0中,点SKIPIF1<0的直角坐标为SKIPIF1<0.若以原点SKIPIF1<0为极点,SKIPIF1<0轴正半轴为极轴建立极坐标系,则点SKIPIF1<0的极坐标可以是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;易知SKIPIF1<0,SKIPIF1<0.(朝阳·理·题9)已知圆的极坐标方程为SKIPIF1<0,则圆心的直角坐标是;半径长为.SKIPIF1<0;由SKIPIF1<0,有SKIPIF1<0,即圆的直角坐标方程为SKIPIF1<0.于是圆心坐标为SKIPIF1<0,半径为1.(崇文·理·题11)将参数方程SKIPIF1<0(SKIPIF1<0为参数)化成普通方程为

.SKIPIF1<0;由SKIPIF1<0知SKIPIF1<0.(石景山·理·题11)如图,已知SKIPIF1<0是圆SKIPIF1<0的切线.直线SKIPIF1<0交圆SKIPIF1<0于SKIPIF1<0、SKIPIF1<0两点,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0.则SKIPIF1<0的长为_____,SKIPIF1<0的大小为________.SKIPIF1<0,SKIPIF1<0;SKIPIF1<0,则SKIPIF1<0;由SKIPIF1<0,可知SKIPIF1<0,即SKIPIF1<0,由SKIPIF1<0,得SKIPIF1<0.(西城·理·题11)将极坐标方程SKIPIF1<0化成直角坐标方程为.SKIPIF1<0;SKIPIF1<0.(东城·理·题12)圆的极坐标方程为SKIPIF1<0,将其化成直角坐标方程为,圆心的直角坐标为.SKIPIF1<0,SKIPIF1<0;SKIPIF1<0.(东城·理·题12)圆的极坐标方程为SKIPIF1<0,将其化成直角坐标方程为,圆心的直角坐标为.SKIPIF1<0,SKIPIF1<0;SKIPIF1<0.(宣武·理·题12)若直线SKIPIF1<0与曲线SKIPIF1<0(SKIPIF1<0为参数,SKIPIF1<0)有两个公共点SKIPIF1<0,且SKIPIF1<0,则实数SKIPIF1<0的值为;在此条件下,以直角坐标系的原点为极点,SKIPIF1<0轴正方向为极轴建立坐标系,则曲线SKIPIF1<0的极坐标方程为.SKIPIF1<0;曲线SKIPIF1<0:SKIPIF1<0,点SKIPIF1<0到SKIPIF1<0的距离为SKIPIF1<0,因此SKIPIF1<0;SKIPIF1<0,即SKIPIF1<0.(丰台·理·题12)在平面直角坐标系SKIPIF1<0中,直线SKIPIF1<0的参数方程为SKIPIF1<0(参数SKIPIF1<0),圆SKIPIF1<0的参数方程为SKIPIF1<0(参数SKIPIF1<0),则圆心到直线SKIPIF1<0的距离是.SKIPIF1<0;直线方程为SKIPIF1<0,圆的方程为SKIPIF1<0.于是圆心SKIPIF1<0到直线SKIPIF1<0的距离为SKIPIF1<0.复数(海淀·理·题1)在复平面内,复数SKIPIF1<0(SKIPIF1<0是虚数单位)对应的点位于()A.第一象限B.第二象限C.第三象限D.第四象限C;SKIPIF1<0,该复数对应的点位于第三象限.(丰台·理·题1)如果SKIPIF1<0为纯虚数,则实数SKIPIF1<0等于()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0或SKIPIF1<0D;设SKIPIF1<0,SKIPIF1<0则SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<0或SKIPIF1<0.(石景山·理·题1)复数SKIPIF1<0等于()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;SKIPIF1<0.(东城·理·题1)SKIPIF1<0是虚数单位,若SKIPIF1<0,则SKIPIF1<0的值是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;SKIPIF1<0,于是SKIPIF1<0.(朝阳·理·题1)复数SKIPIF1<0等于()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0D;计算容易有.(海淀·文·题1)在复平面内,复数SKIPIF1<0(SKIPIF1<0是虚数单位)对应的点位于()A.第一象限B.第二象限C.第三象限D.第四象限A;SKIPIF1<0,对应的点为SKIPIF1<0位于第一象限.(丰台·文·题1)复数SKIPIF1<0化简的结果等于()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0A;SKIPIF1<0SKIPIF1<0.(石景山·文·题1)复数SKIPIF1<0等于()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;SKIPIF1<0.(东城·文·题1)计算复数SKIPIF1<0的结果为()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0A;SKIPIF1<0.(朝阳·文·题1)复数SKIPIF1<0等于()A.2B.-2 C.SKIPIF1<0 D.SKIPIF1<0C;SKIPIF1<0.(宣武·理·题3)若复数SKIPIF1<0满足SKIPIF1<0,则SKIPIF1<0对应的点位于()A.第一象限 B.第二象限 C.第三象限 D.第四象限B;SKIPIF1<0.(宣武·文·题4)设SKIPIF1<0是虚数单位,则复数SKIPIF1<0所对应的点落在()A.第一象限 B.第二象限 C.第三象限 D.第四象限B;SKIPIF1<0.(西城·文·题9)SKIPIF1<0是虚数单位,SKIPIF1<0.SKIPIF1<0;SKIPIF1<0.(西城·理·题9)若SKIPIF1<0,其中SKIPIF1<0,SKIPIF1<0为虚数单位,则SKIPIF1<0.3;SKIPIF1<0SKIPIF1<0.(崇文·理·题9)如果复数SKIPIF1<0(其中SKIPIF1<0是虚数单位)是实数,则实数SKIPIF1<0___________.SKIPIF1<0;SKIPIF1<0.于是有SKIPIF1<0.(崇文·文·题10)如果复数SKIPIF1<0(其中SKIPIF1<0是虚数单位)是实数,则实数SKIPIF1<0___________.-1;SKIPIF1<0.于是有SKIPIF1<0.算法(丰台·文·题3)在右面的程序框图中,若SKIPIF1<0,则输出SKIPIF1<0的值是()A.2B.3C.4D.5C;SKIPIF1<0,对应的SKIPIF1<0.(石景山·理·题4)一个几何体的三视图如图所示,那么此几何体的侧面积(单位:SKIPIF1<0)为()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0A;几何体如图,是正四棱锥,底边长SKIPIF1<0,侧面底边上的高为SKIPIF1<0,因此侧面积为SKIPIF1<0.(西城·理·题5)阅读右面的程序框图,运行相应的程序,输出的结果为()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0D;SKIPIF1<0;SKIPIF1<0;SKIPIF1<0,SKIPIF1<0,故输出SKIPIF1<0.(东城·理·题5)如图是一个算法的程序框图,若该程序输出的结果为SKIPIF1<0,则判断框中应填入的条件是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0B;循环一次得:SKIPIF1<0;两次得:SKIPIF1<0;三次得:SKIPIF1<0;四次得:SKIPIF1<0,此时需要跳出循环,故填SKIPIF1<0.(东城·文·题5)按如图所示的程序框图运算,若输入SKIPIF1<0,则输出SKIPIF1<0的值是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0B;SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,跳出循环,输出SKIPIF1<0.(石景山·文·题6)已知程序框图如图所示,则该程序框图的功能是()A.求数列SKIPIF1<0的前10项和SKIPIF1<0B.求数列SKIPIF1<0的前10项和SKIPIF1<0C.求数列SKIPIF1<0的前11项和SKIPIF1<0D.求数列SKIPIF1<0的前11项和SKIPIF1<0B注意SKIPIF1<0和SKIPIF1<0的步长分别是SKIPIF1<0和SKIPIF1<0.(西城·文·题6)阅读右面的程序框图,运行相应的程序,输出的结果为()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0D;SKIPIF1<0;SKIPIF1<0;SKIPIF1<0,SKIPIF1<0,故输出SKIPIF1<0.(海淀·理科·题7)已知某程序框图如图所示,则执行该程序后输出的结果是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0A;∵SKIPIF1<0,∴对应的SKIPIF1<0.(朝阳·文·题11)如图,下程序框图的程序执行后输出的结果是.55;将经过SKIPIF1<0次运行后的SKIPIF1<0值列表如下.于是SKIPIF1<0.SKIPIF1<012345...SKIPIF1<0...10SKIPIF1<023456SKIPIF1<011SKIPIF1<01361015SKIPIF1<055(宣武·文·题12)执行如图程序框图,输出SKIPIF1<0的值等于.SKIPIF1<0;运算顺序如下SKIPIF1<0,输出SKIPIF1<0,故SKIPIF1<0.(崇文·理·题12)(崇文·文·题12)某程序框图如图所示,该程序运行后输出SKIPIF1<0的值分别为

.13,21;依据程序框图画出运行SKIPIF1<0次后SKIPIF1<0的值.SKIPIF1<0123SKIPIF1<0234SKIPIF1<02513SKIPIF1<038214次运行后SKIPIF1<0,于是有SKIPIF1<0.(丰台·理·题13)在右边的程序框图中,若输出SKIPIF1<0的值是SKIPIF1<0,则输入SKIPIF1<0的取值范围是.SKIPIF1<0;∵SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0∴要使得刚好进行SKIPIF1<0次运算后输出的SKIPIF1<0,则有SKIPIF1<0.(朝阳·理·题13)右边程序框图的程序执行后输出的结果是.625;将经过SKIPIF1<0次运行后的SKIPIF1<0值列表如下.SKIPIF1<012345...SKIPIF1<0...25SKIPIF1<0357911SKIPIF1<051SKIPIF1<01491625SKIPIF1<0625于是SKIPIF1<0.(海淀·文·题13)已知程序框图如图所示,则执行该程序后输出的结果是_______________.SKIPIF1<0;∵SKIPIF1<0,∴对应的SKIPIF1<0.集合简易逻辑推理与证明(崇文·文·题1)已知全集SKIPIF1<0,集合SKIPIF1<0,SKIPIF1<0,则集合SKIPIF1<0()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0D;容易解得SKIPIF1<0或者SKIPIF1<0,SKIPIF1<0.于是SKIPIF1<0SKIPIF1<0.(西城·理·题1)设集合SKIPIF1<0,SKIPIF1<0,则下列结论正确的是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;SKIPIF1<0,SKIPIF1<0.(宣武·理·题1)设集合SKIPIF1<0,则下列关系中正确的是()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0D;SKIPIF1<0,SKIPIF1<0,故SKIPIF1<0,因此SKIPIF1<0(崇文·理·题1)已知全集SKIPIF1<0,集合SKIPIF1<0,SKIPIF1<0,则集合SKIPIF1<0()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0D;容易解得SKIPIF1<0或者SKIPIF1<0,SKIPIF1<0.于是SKIPIF1<0SKIPIF1<0.(西城·文·题1)设集合SKIPIF1<0,SKIPIF1<0,下列结论正确的是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;SKIPIF1<0,SKIPIF1<0.(宣武·文·题1)设集合SKIPIF1<0,则下列关系中正确的是()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0D;正确的表示法,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0.(东城·理·题2)设全集SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,则SKIPIF1<0等于()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0D;SKIPIF1<0,SKIPIF1<0,故SKIPIF1<0.(石景山·文·题2)已知命题SKIPIF1<0SKIPIF1<0,SKIPIF1<0,那么命题SKIPIF1<0为()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0B;全称命题的否定是存在性命题,将SKIPIF1<0改为SKIPIF1<0,然后否定结论.(东城·文·题2)设集合SKIPIF1<0,SKIPIF1<0,则韦恩图中阴影部分表示的集合()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0B;阴影部分表示SKIPIF1<0.(丰台·理·题2)设集合SKIPIF1<0,SKIPIF1<0,则集合SKIPIF1<0是()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0C;SKIPIF1<0,SKIPIF1<0,因此SKIPIF1<0.(石景山·理·题2)已知命题SKIPIF1<0SKIPIF1<0,SKIPIF1<0,那么命题SKIPIF1<0为()A.SKIPIF1<0B.SKIPIF1<0C.SKIPIF1<0D.SKIPIF1<0B;全称命题的否定是存在性命题,将SKIPIF1<0改为SKIPIF1<0,然后否定结论.(朝阳·文·题2)命题SKIPIF1<0,都有SKIPIF1<0,则()A.SKIPIF1<0,使得SKIPIF1<0 B.SKIPIF1<0,使得SKIPIF1<0C.SKIPIF1<0,使得SKIPIF1<0 D.SKIPIF1<0,使得SKIPIF1<0A;由命题的否定容易做出判断.(海淀·文·题7)给出下列四个命题:=1\*GB3①若集合SKIPIF1<0、SKIPIF1<0满足SKIPIF1<0,则SKIPIF1<0;=2\*GB3②给定命题SKIPIF1<0,若“SKIPIF1<0”为真,则“SKIPIF1<0”为真;=3\*GB3③设SKIPIF1<0,若SKIPIF1<0,则SKIPIF1<0;=4\*GB3④若直线SKIPIF1<0与直线SKIPIF1<0垂直,则SKIPIF1<0.其中正确命题的个数是()A.1B.2C.3D.4B;命题①和④正确.(丰台·文·题7)若集合SKIPIF1<0,

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