新高考數(shù)學(xué)一輪復(fù)習(xí) 專(zhuān)項(xiàng)分層精練第22課 二倍角公式（原卷版）

第22課二倍角公式（分層專(zhuān)項(xiàng)精練）【一層練基礎(chǔ)】一、單選題1．（2022秋·江蘇揚(yáng)州·高三?？茧A段練習(xí)）已知SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<02．（2023·全國(guó)·統(tǒng)考高考真題）已知SKIPIF1<0為銳角，SKIPIF1<0，則SKIPIF1<0（

）．A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<03．（2023春·湖北襄陽(yáng)·高三襄陽(yáng)五中?？茧A段練習(xí)）已知SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<04．（2022秋·江蘇南京·高二南京師大附中?？奸_(kāi)學(xué)考試）若SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<0二、多選題5．（2023·全國(guó)·模擬預(yù)測(cè)）若SKIPIF1<0，SKIPIF1<0，則（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<06．（2023·全國(guó)·高三專(zhuān)題練習(xí)）若函數(shù)SKIPIF1<0，則關(guān)于SKIPIF1<0的性質(zhì)說(shuō)法正確的有（

）A．偶函數(shù) B．最小正周期為SKIPIF1<0C．既有最大值也有最小值 D．有無(wú)數(shù)個(gè)零點(diǎn)7．（2023·江蘇南京·南京市第九中學(xué)?？寄M預(yù)測(cè)）已知函數(shù)SKIPIF1<0，則（

）A．SKIPIF1<0的最大值為3 B．SKIPIF1<0的最小正周期為SKIPIF1<0C．SKIPIF1<0的圖象關(guān)于直線SKIPIF1<0對(duì)稱(chēng) D．SKIPIF1<0在區(qū)間SKIPIF1<0上單調(diào)遞減三、填空題8．（2022·全國(guó)·高三專(zhuān)題練習(xí)）若SKIPIF1<0，則SKIPIF1<0的值為．9．（2023春·江蘇·高一期中）已知SKIPIF1<0，則SKIPIF1<0．四、解答題10．（2023春·河南南陽(yáng)·高一?？茧A段練習(xí)）已知函數(shù)SKIPIF1<0，且SKIPIF1<0．(1)求SKIPIF1<0的值和SKIPIF1<0的最小正周期；(2)求SKIPIF1<0在SKIPIF1<0上的單調(diào)遞增區(qū)間．【二層練綜合】一、單選題1．（2019·全國(guó)·高考真題）已知SKIPIF1<0∈（0，SKIPIF1<0），2sin2α=cos2α+1，則sinα=A．SKIPIF1<0 B．SKIPIF1<0C．SKIPIF1<0 D．SKIPIF1<0二、多選題2．（2023春·江西宜春·高三江西省宜豐中學(xué)?？茧A段練習(xí)）下列四個(gè)等式正確的是（

）A．SKIPIF1<0B．SKIPIF1<0C．SKIPIF1<0D．SKIPIF1<0三、填空題3．（2023·四川·校聯(lián)考模擬預(yù)測(cè)）若SKIPIF1<0，SKIPIF1<0，則SKIPIF1<0四、解答題4．（2023·全國(guó)·高一專(zhuān)題練習(xí)）如圖，在四邊形SKIPIF1<0中，SKIPIF1<0(1)求角SKIPIF1<0的值；(2)若SKIPIF1<0，SKIPIF1<0，求四邊形SKIPIF1<0的面積【三層練能力】一、多選題1．（2022秋·江西宜春·高一江西省宜豐中學(xué)?？计谥校┮阎瘮?shù)SKIPIF1<0，則（

）A．函數(shù)SKIPIF1<0的值域?yàn)镾KIPIF1<0B．函數(shù)SKIPIF1<0是一個(gè)偶函數(shù)，也是一個(gè)周期函數(shù)C．直線SKIPIF1<0是函數(shù)SKIPIF1<0的一條對(duì)稱(chēng)軸D．方程SKIPIF1<0