天津市高三数学上学期第一次月考试卷 理(PDF)试卷VIP专享VIP免费

23456参考答案：1-8DBCBDADB9.2110.411.1212.6113.],[],(5151014.),[233243ee15.解：228322028383043442204222222222322222)()()()()(],[],[)(],[],[)sin(cossincossin)cos(sin)(maxminfxfffxfxfxxTxxxxxxxxf上在上在16.解：321222BBBBBACCABBAcCaBbAPAcBbCacossincossincossincossincossincoscoscoscos,cos,cos成7),[],(sinsinsinsinsinsin33232123363bAAABabBbAaABAba17.解1871031601841901811180180906002319192111324121213132422132412121324221312242213241212CCCCCCCCxPxPCCCCxPCCCxPxCCCCCCCCAP)()()()(,,,)()()(的可能取值为060901801811841861875018900Ex27731323133223)()()()()(CBP818.解：),(),(),()()()()()(ln)(////222212121022103411125252222122xxxfx：yffkxxxxfaaxxxfaxxxxf令切线3122012220000112221212122112121212121axxaaxxxhxaxxxxhxhxxxhxhxxfxhxxxxfxxfxxxxyyxxyykAB)(ln)(),()()()()()())(())(()(/上在令919.解：GPababnanbqbGP，nbnbnbbnbbnadaAPaaaaSSannnnnnnnnnnnnnnnnnnnn是又首项是）首项是}{)()(,}41-n21-{b()()(,,}{)(n1111111111131104121311041213110412141121412131313241212143212143112254370131311021311031102131104121321122111bbbbbbbnbnnnnnnnnnn是递增数列)()()()()()(103340910472123bbTnbbn项和最小值前}{20.解：),),()(),()()())(()()()()ln()()(///aaaaaaaaxaaxaxfxfaaaxaaxaxxaaxxfaxaxxfaxaxxf2220222000220212211211222222122222222舍时当上在时当（2）若f(x)存在2个极值点由（1）知：0