考研数学三模拟1与解答

E-aa'^x=0\r/=1\rôõ!"x=a&@(L/Lö)L"7)a=0.~a=(l,2,yÙÚ/=\wÕÖÛÜ.\rA¦ï3؎æÕÖÛÜ@A¹k÷Ùøù.<10\\r(-2-3-n0\rÑ0\r1?\rûP=(4ü@C)=@P=A.\r12K"L0\r(22)(I)`þ}Qÿ\rFZ(Z)=P(Z?Z)=P{XY<Z}=p(y=i)p(xy?z|Y=I)+P(Y=i)p(xyz|y=-i}\r=i[P{X<z}+P{X>-z}]=-L[f1^z+f"_L_e%]=$e-dz=&'\re\r22)^+A/2^--42/\r(H)12X=0,1=0,56789:;<=>?@Cou(X,Z)=E(X2y)2X2Xy=0EF\rX6ZGHIJ\rKP[X<\,Z<\}^P{X<\,XY<\}^P{X<\,XY<\,Y^-\}+P{X<\,XY<\,Y^\}\r=p{x<i,x>-i,y=-i}+p{x<i,x<i,y=i}=l[P{-i<x<IJ+P{X<i}]J[30O-P\r22\rQ+=R:P{XK1}P{ZW1}=[&(l)f,;UVX6ZGW89.\r(23)YZ[O\]^e_`abcdM\r4+f\r11g2dlnL\r2)lnL=?(ln2-ln^--ln^)3W%:\rd0\r3)Zie_`abcjk\r(II)lmnopqe-_rsjk:\r;u2(X-)=[f+OOx))2e+^t:dx=0__~_ffff+00e~2dt=+0~\r°e74TI°2\rv8wx9wEvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\ryzl{|}~\rAOn\r€2n222/22\rEFE(d)=_9E(X‚:ƒ6=5$&oq‚_rsjk.\r:Mn,=i\rv9wx9w