第02講三角恒等變換（模擬精練+真題演練）1．（2023·河南開封·統考三模）已知角SKIPIF1<0的頂點為坐標原點，始邊與SKIPIF1<0軸的非負半軸重合，終邊經過點SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<02．（2023·河南·襄城高中校聯考三模）已知SKIPIF1<0，SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<03．（2023·廣東深圳·?？级＃┮阎猄KIPIF1<0，則SKIPIF1<0的值是（

）A．SKIPIF1<0 B．2 C．SKIPIF1<0 D．SKIPIF1<04．（2023·寧夏石嘴山·平羅中學校考模擬預測）若SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<05．（2023·福建廈門·統考模擬預測）已知SKIPIF1<0，則SKIPIF1<0（

）A．0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<06．（2023·吉林延邊·統考二模）下列化簡不正確的是（

）A．SKIPIF1<0 B．SKIPIF1<0C．SKIPIF1<0 D．SKIPIF1<07．（2023·江西上饒·統考二模）已知SKIPIF1<0，則SKIPIF1<0（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<08．（2023·湖南長沙·雅禮中學?？寄M預測）已知SKIPIF1<0，SKIPIF1<0，則SKIPIF1<0（

）A．4 B．6 C．SKIPIF1<0 D．SKIPIF1<09．（多選題）（2023·廣東廣州·廣州六中?？既＃┤艉瘮礢KIPIF1<0，則（

）A．函數SKIPIF1<0的一條對稱軸為SKIPIF1<0B．函數SKIPIF1<0的一個對稱中心為SKIPIF1<0C．函數SKIPIF1<0的最小正周期為SKIPIF1<0D．若函數SKIPIF1<0，則SKIPIF1<0的最大值為210．（多選題）（2023·全國·模擬預測）若SKIPIF1<0，SKIPIF1<0，則（

）A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<011．（多選題）（2023·安徽黃山·統考二模）若SKIPIF1<0，則SKIPIF1<0的值可能是（

）A．SKIPIF1<0 B．SKIPIF1<0 C．2 D．312．（多選題）（2023·湖南邵陽·統考二模）若函數SKIPIF1<0的最小正周期為SKIPIF1<0，則（

）A．SKIPIF1<0 B．SKIPIF1<0在SKIPIF1<0上單調遞增C．SKIPIF1<0在SKIPIF1<0內有5個零點 D．SKIPIF1<0在SKIPIF1<0上的值域為SKIPIF1<013．（2023·海南?？凇ずＤ先A僑中學?？寄M預測）已知SKIPIF1<0，則SKIPIF1<0______.14．（2023·河南·襄城高中校聯考三模）若SKIPIF1<0，則SKIPIF1<0__________.15．（2023·河南·襄城高中校聯考三模）若SKIPIF1<0，則SKIPIF1<0______．16．（2023·安徽合肥·合肥一中?？寄M預測）已知，都是銳角，SKIPIF1<0，則SKIPIF1<0=___________.17．（2023·天津濱海新·統考三模）在SKIPIF1<0中，內角SKIPIF1<0，SKIPIF1<0，SKIPIF1<0所對的邊分別為SKIPIF1<0，SKIPIF1<0，SKIPIF1<0，SKIPIF1<0，SKIPIF1<0，SKIPIF1<0．(1)求SKIPIF1<0的值；(2)求SKIPIF1<0的值；(3)求SKIPIF1<0的值．18．（2023·天津和平·耀華中學?？家荒＃┮阎猄KIPIF1<0，SKIPIF1<0.(1)求SKIPIF1<0的大?。?2)設函數SKIPIF1<0，SKIPIF1<0，求SKIPIF1<0的單調區間及值域.19．（2023·北京海淀·統考二模）已知函數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上的單調遞增區間．1．（2021?全國）函數SKIPIF1<0圖像的對稱軸是SKIPIF1<0SKIPIF1<0A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<02．（2021?甲卷）若SKIPIF1<0，SKIPIF1<0，則SKIPIF1<0SKIPIF1<0A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<03．（2021?乙卷）SKIPIF1<0SKIPIF1<0A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<04．（2020?新課標Ⅲ）已知SKIPIF1<0，則SKIPIF1<0SKIPIF1<0A．SKIPIF1<0 B．SKIPIF1<0 C．1 D．25．（2020?新課標Ⅲ）已知SKIPIF1<0，則SKIPIF1<0SKIPIF1<0A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<06．（2020?新課標Ⅰ）已知SKIPIF1<0，且SKIPIF1<0，則SKIPIF1<0SKIPIF1<0A．SKIPIF1<0 B．SKIPIF1<0 C．SKIPIF1<0 D．SKIPIF1<07．（2022?浙江）若SKIPIF1<0，SKIPIF1<0，則SKIPIF1<0，SKIPIF1<0．8．（2022?北京）若函數SKIPIF1<0的一個零點為SKIPIF1<0，則SKIPIF1<0；SKIPIF1<0．9．（2020?江蘇）已知SKIPIF1<0，則SKIPIF1<0的