1、ff trrffi # 20 1 5 +a trfiR*fififts#iititt# (A) 64ifrf+El: 601 W+rl+fr Si) ( 150 t) tifrHf f4 s dFJ-, ifHFE I,JFE lor) q eorl)r.*trrrp H(o* z +!fi .It. afrftH W. a,b,cHtH,F fttl$% = c * 0,-o 1, ln(1+r)*rb tq. &.Fffi4.4effifrt9h * = oy.-tt1l 0 r A.LY=a(r-cosrr,*E ffix ffi ffi # -E EFI kl ffi *+4 filf
2、$ffl 5iru ffi fFT As. rfr. I,= Iutin xcosxdgn =I,2,* ;r, .o. x /() = (0 x n)$.xtn o,aJrm frixww,#irnxsm i # = it . *H ,. + ildx + (y - z)dy + (z - x)dz, X + t )ilL(O, 0, 0) ftJ 0, 2, 3) fiiHS.FA.l- 1 1 _1 Is. ire l*,1-rry * ry+.+G;FJ.g. w.z:rc+, H+ f )1trJ1ffirr1r., IH+K.+K-.t. ti. a b, &w f lia,bti
3、+g*, lt(a,b)ru Els, .f(a) = f(b) = 0 .ifrnn : 3f e(a,b),rfr14 f (C- f ()=0.z. iEnn: /(x) . sn-2xz-&xtl (0,+co)r-tri*.5x#*qftsFrgftt, 5&ifr#rfiftz. * f (r) ex = 0 fil*4ru ru +a /(o) = L,f (0) = 2,*f&FR Hir)qffi Lfr(* 2 F)3, & JF)&0,b J.a:hF&, trl,f (x)l s3,f (x)&(0,b) ftry?sFtfHirnn : l/(o)l+l/(b) 3b 4 . ynftR46 wftfrwwfl,+-E 0 x 1 rnt*!fft*. *&ffltiF,I+nx6*5#&FESK.L, &id # -LftN.ffi Lfr(xzfr)
