2016屆浙江省嘉興市高三上學(xué)期期末考試數(shù)學(xué)(理)試題掃描版_第1頁
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嘉興市2015~2016學(xué)年第一學(xué)期期末檢測高三理科數(shù)學(xué)參考答案(2016.1)一.選擇題(本大題有10小題,每小題5分,共50分)1~4 DACB; 5~8CACC;8.解析:數(shù)陣中第一列的數(shù)全是0,當(dāng)且僅當(dāng)SKIPIF1<0,∴A正確;數(shù)陣中第SKIPIF1<0列的數(shù)全是1當(dāng)且僅當(dāng)SKIPIF1<0,∴B正確;當(dāng)SKIPIF1<0中一個為S本身,其余SKIPIF1<0個子集為S互不相同的SKIPIF1<0元子集時,數(shù)陣中所有的SKIPIF1<0個數(shù)字之和最大,且為SKIPIF1<0,∴D正確;數(shù)陣中第SKIPIF1<0行的數(shù)字和表明元素SKIPIF1<0屬于幾個子集,∴C錯誤.二.填空題(本大題有7小題,每小題4分,共28分,請將答案寫在答題卷上)9.SKIPIF1<0,SKIPIF1<0; 10.SKIPIF1<0,SKIPIF1<0;11.2,SKIPIF1<0; 12.1,1;13.SKIPIF1<0; 14.SKIPIF1<0; 15.SKIPIF1<0.15.解析:設(shè)物流中心為SKIPIF1<0由條件:SKIPIF1<0,易知:SKIPIF1<0,∴由(2)得:SKIPIF1<0,∴SKIPIF1<0,∴SKIPIF1<0,∴由(1)得:SKIPIF1<0,∴SKIPIF1<0,∴SKIPIF1<0∴SKIPIF1<0.三、解答題:(本大題共5小題,共72分.解答應(yīng)寫出文字說明、證明過程或演算步驟)16.解:(Ⅰ)由正弦定理得:SKIPIF1<0,....................(2分)∴由余弦定理得:SKIPIF1<0,.................(4分)∴SKIPIF1<0.......................(7分)(Ⅱ)若SKIPIF1<0,則由(Ⅰ)知:SKIPIF1<0,..(9分)又SKIPIF1<0,...........................................(11分)∴SKIPIF1<0,即SKIPIF1<0面積的最大值為SKIPIF1<0..............................(14分)17.解:(Ⅰ)∵SKIPIF1<0平面SKIPIF1<0,∴SKIPIF1<0,...........................................(2分)又∵SKIPIF1<0,SKIPIF1<0,∴SKIPIF1<0面SKIPIF1<0,.......................................(4分)又SKIPIF1<0面SKIPIF1<0,∴平面SKIPIF1<0平面SKIPIF1<0...............................(6分)(Ⅱ)∵SKIPIF1<0,∴如圖,建立空間直角坐標(biāo)系SKIPIF1<0,則:SKIPIF1<0,∴SKIPIF1<0,∴SKIPIF1<0,..............(8分)設(shè)SKIPIF1<0,SKIPIF1<0則:SKIPIF1<0...........(10分)設(shè)平面SKIPIF1<0的法向量為SKIPIF1<0,則SKIPIF1<0,∴取SKIPIF1<0,.......(12分)又平面SKIPIF1<0的法向量為SKIPIF1<0,∴SKIPIF1<0,∴SKIPIF1<0,.........(14分)故當(dāng)點F滿足SKIPIF1<0時,二面角SKIPIF1<0的余弦值為SKIPIF1<0...(15分)18.解:(Ⅰ)∵SKIPIF1<0,SKIPIF1<0,∴SKIPIF1<0,又∵SKIPIF1<0,∴SKIPIF1<0,相減得:SKIPIF1<0,∵SKIPIF1<0是等比數(shù)列,.........(3分)∴SKIPIF1<0,∴SKIPIF1<0,SKIPIF1<0又SKIPIF1<0,∴SKIPIF1<0,..................................(6分)所以SKIPIF1<0.....................................(7分)(Ⅱ)SKIPIF1<0,...............................(8分)抽去的項為SKIPIF1<0數(shù)列SKIPIF1<0為SKIPIF1<0,.............(10分)當(dāng)SKIPIF1<0為偶數(shù)時,SKIPIF1<0SKIPIF1<0SKIPIF1<0,SKIPIF1<0(SKIPIF1<0SKIPIF1<0是以36為首項,27為公比的等比數(shù)列,SKIPIF1<0SKIPIF1<0.........................(12分)當(dāng)SKIPIF1<0為奇數(shù)時,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0是以270為首項,27為公比的等比數(shù)列,SKIPIF1<0.................(15分)19.解:(Ⅰ)由條件:SKIPIF1<0,∴橢圓的標(biāo)準(zhǔn)方程為:SKIPIF1<0...(4分)(Ⅱ)①當(dāng)直線PQ斜率SKIPIF1<0時,線段PQ的中垂線SKIPIF1<0在SKIPIF1<0軸上的截距為0;②設(shè)PQ:SKIPIF1<0,則:SKIPIF1<0,...........(6分)設(shè)SKIPIF1<0,則SKIPIF1<0,∵SKIPIF1<0,∴SKIPIF1<0,....................(8分)∴SKIPIF1<0SKIPIF1<0∴SKIPIF1<0SKIPIF1<0或SKIPIF1<0(舍去),............(10分)∴PQ為:SKIPIF1<0,∴SKIPIF1<0,SKIPIF1<0,∴線段PQ的中垂線SKIPIF1<0為:SKIPIF1<0,∴在SKIPIF1<0軸上截距SKIPIF1<0,.........................(12分)∴SKIPIF1<0,∴SKIPIF1<0且SKIPIF1<0,綜合①②得:線段PQ的中垂線SKIPIF1<0在SKIPIF1<0軸上的截距的取值范圍是SKIPIF1<0..............................(15分)20.解:(Ⅰ)當(dāng)SKIPIF1<0時,SKIPIF1<0在區(qū)間SKIPIF1<0上是增函數(shù),則SKIPIF1<0,.............................(2分)又SKIPIF1<0,∴SKIPIF1<0...............................(5分)(Ⅱ)SKIPIF1<0,(1)當(dāng)SKIPIF1<0時,SKIPIF1<0在區(qū)間SKIPIF1<0上是單調(diào)函數(shù),則SKIPIF1<0,而SKIPIF1<0,∴SKIPIF1<0,∴SKIPIF1<0........................................(8分)(2)當(dāng)SKIPIF1<0時,SKIPIF1<0的對稱軸SKIPIF1<0在區(qū)間SKIPIF1<0內(nèi),則SKIPIF1<0,又SKIPIF1<0,①當(dāng)SKIPIF1<0時,有SKIPIF1<0,則SKIPIF1<0,..................(11分)②當(dāng)SKIPIF1<0時,有SKIPIF1<0,則SKIPIF1<0綜上可知,對任意的SKIPI

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