2014考研数学秋季大练兵模拟测试卷考研数学秋季大练兵模拟测试卷考研数学秋季大练兵模拟测试卷考研数学秋季大练兵模拟测试卷((((数学三数学三数学三数学三))))答案答案答案答案本试卷满分150,考试时间180分钟1=≠=0,00,||ln)(2xxxxxf!)0()(nf"#$%&'()*n+,-,A-0,B-1,C-2,D-3..../0/0/0/0123123123123C4444555567676767898989890)0()(lim0==→fxfx:;)(xf<0=x=>?@00)0()(lim)0('0=−−=→xfxffx:;)(xf<0=x=ABCD@E0≠xF:xxxxxxxxxxxxxfsgn)'sgn()sgn(ln2)sgn(ln1')sgn(ln)('322⋅−==||ln2||ln132xx−=:G0)0(')('lim0==→fxfx:;)('xf<0=x=>?@∞=−−=→0)0(')('lim)0(''0xfxffx:;)(xf<0=x=HIBCD@JJJJ2KKKKL(),()fxgxM(,)−∞+∞NOPQRS1xx=T()fxUVWXYZR2xx=T()gxUVWXYZR[\]\A]^12xx=_R()()fxgx+`OVWUXYZ1xx=\B]^12xx≠_R()()fxgx+`OabXYZ1xx=c2xx=\C]^12xx=_R()()fxgx`OVWXYZ1xx=\D]^12xx≠_R()()fxgx`OabXYZ1xx=c2xx=ddddefefefefghghghghiiiiBjjjjkkkklmlmlmlmnonononop()()()Fxfxgx=+qrs()Fxt1xx=uvwqx()()()fxFxgx=−yz{|}()gx~t2xx=uquvwq
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