高丽-基本不等式【2018年第9届全国高中数学优质课比赛教学设计、课件】

1A5412241ABCD2ba,334SSabba2224ba,baba1.ababba222ba50,0ba,ba,ba,2baabab=2.)0,0(2babaabba2baba,abba,a,b46ab.2ababab2abab7?,CAB,AC=aBC=bAB,OCABDC,ADBDODa,bOD?a,bCD?ODCD?(5abba2abba2,02abba,0)(2ba,a=b,.211,12121,0.1xxxxxxxxxx.21112121,1.2xxxxxxxxxx.)1(21,12121)1(,10.3xxxxxxxxxx(1).4(2).8m6)1(,311aaa___________________________________________________________;_____________________________________________________________________________________________________________________________________________3.42abab121.2.3.4.71.2.3.(1)(2)1.,0,22ababab,0,12ababab2.12,0,1ababab12,0,2ababab3.12,0,12ababab12,0,22ababab1.1x41xx2.01x33xx3.4,0,11baabab4.504x54xx5.,ab1log1ab13abb6.20090,0.ab11333abab8A8B4C1D1445244,