Acta Scientiarum Universitatis Pekiniensis (Naturalum)

a 15 DAB Zr. (8) WIESE ASL 8

=2) » +2 Ss -1.

1

5 a s - I! net o>Aw "+

3trh A, FSS 24 SAUTE Be, B25. 22 f(@) TE (a,b) LAVA ARN PS Be Se, f'(d) =a, f' @=B. RE g(x) >0 RB PK, g' (2) Mey, Bl g'(x) | Ha PB,

Ss g(n) 227M) fg @erV@—™ dn

a<n<Xb a—N<v<fin a +O{g(a)log(b— c+2)} +010") SOP yn Sve 1 IE HB. HET S| BLS Ao 4-10 BHS6. 2 F(x) BfE(a,d) LIAM MMH, F"(a)ar50, g(a) / F'(w) Bi el |g(@)\ <M, h 8 iF (2) q HOES eee n\< wre 3% | EB LPS OA 4-5 Bie 7. = A seh,

L eee O(u2=D ) (85+0),

(aue”)” ac. I g@)j=e ~ wu Sino 5 IG ee u cos 8 = _, 250 f'(a) = ——"_-2""1u cos 8, 250; fi @) = _ n(n 1) pn 2y cos 6, 256 MAE MEM O<ncAu Ty, | f"(@)|<y. EE 9(@)| <L fi

g' (@) = —no"“1u sin 8e-F8in of" (&) =e BUSING (209229251 ?8 —n(n— 1) a"—2u sin 8) = 9g MUSING yo—24, sin § (no"u sin 8—n+1) the o! (a) BBA n PRM. 4S" (2) |<, | 7 (@)| =O). 4.45) 5 HaTy ee Ena n=l

Ayu lh eo mu (sin 6-+7 cos 6) da +0(1) . 0