高中數(shù)學(xué)不等式單元測(cè)試題含有詳細(xì)答案-

高中數(shù)學(xué)不等式綜合測(cè)試題分)badc設(shè)，()acbdacbdacbdadbcD．．B．．()aab2a2a2aab2．B．．D．a(chǎn)b22ab0()2xaxb(a1)()bb(,)(,)．R．．．a(chǎn)aaxb()bb(,)(,)．．R．．a(chǎn)a11(,)axbx20ab(2)23|x1|2()．{x|0x．{x|2x．{x|1x3}．{x|x1,xx|xx()．{x|0x{x|0x1x．{x|1x．{x|1xx．或若ba0()11baabb22D．|a||b|ab|．．．a(chǎn)b11ab0若()abba2ababb2D．|a||b|ab|．22．．f(x)3xx1g(x)2xx1f(x)g(x)與(2，2)f(x)g(x)f(x)g(x)f(x)g(x)．B．．Dx2()xyx5222．＋．xD．xxyxx42()(xx2)x0x00x20與2．與．x1x2x1x2log(3x2)03x211與1．與．x112|x1||x9axa()．a(chǎn)|aB．a(chǎn)|a．a(chǎn)|aD．a(chǎn)|a1mx1nnaAy則a12()mn8f642(x)f0(x)0－()．{x|2xx．{x|x或x．{x|x2,0x．{x|2x0,0x(x)－f0(x21)f(x)0(理f()．{x|1x．{x|x2,1x．{x|2x1x．{x|x或1x0,1x1a(xy)xyx,ya()62525．4．D16(xay)(xy)25xyx,y()a6251625．．D44分)111若a,bR與____________．a(chǎn)bab不等式|2xx1的解集是_____________．12xlgy_____________．x1x44x萬x_____________x0x(x)f(2)3____________．fx1,x0共分)x．18x12x2xax2x．22x[數(shù)f(x)x(a4)x202a2a??(x)xaxbf2．(x)2xa若fb[()Mb1；fx當(dāng)x若a1)2a2x[|f(x)1，1b.43CADCCCDDA、DDB111{|0x2}x、、、abab1()2(,3]x2x28x15xx2x22x22x2000x28xx28xx8x(x6)(2x50x356或x(xx25[2xa)0x2x4a4x22xxx{x|x或x4}當(dāng)2{x|x4或x25、a3，xy()()25xy022()42x2y0ySx，24xxSxy2y()y10022，22xx2yy0x102,y52y由和2及x24S100x2y0y，x，24x2x21Sxyx100x)(x200)10000=222444x22100x，Sx2yy52．由2442m52m220xb4b0b1xxR，x2(2)()0(2)4()0axbaa2baa2b1baR))．∴b41abM,f(1abM,f2Mb2Mb1．∴11a0a0242aa(x)[]在[∴f22aa2|x1()xfx在bx11ab．241ab1a2x[，|f(x)1a1b.2b1445CADCCCDDA、DDB111{|0x2}x、、、abab1()2(,3]x2x28x15xx2x22x22x2000x28xx28xx8x(x6)(2x50x356或x(xx25[2xa)0x2x4a4x22xxx{x|x或x4}當(dāng)2{x|x4或x25、a3，xy()()25xy022()42x2y0ySx，24xxSxy2y()y10022，22xx2yy0x102,y52y由和2及x24S100x2y0y，x，24x2x21Sxyx100x)(x200)10000=222444x22100x，Sx2yy52．由2442m52m220xb4b0b1xxR，x2(2)()0(2)4()0axbaa2baa2b1baR))．∴b41abM,f(