1、2021-10 1 2 201910 120 150 125604 1AB A B C1 D1,2 2z A B C D 3.55xy x 9 9.5 10 10.5 11 y 11 10 8 6 5 yx3.2yxa Axy B40a C8.5xy12.8 D10.5,60.4 4nannSna A B C D 5sing xx Ayf xg x B.yf xg x Cyf x g x D 6,ABCD AB/DCAB=2CDE AD 4BF=ABEF=AB CD7.A B C D 8.A12 B-1 C1 D2 9.112sin2sinee A122 Blnln C D1111ee 10.
2、ABCDMNADBCFABABMN1GMNFGFGCDMFNFMN A B C D 11f x A B C D 12AF24.MCMMAMF12122 A B23 C DM 4520 133_.14xy32,0 xyyxx y22(-1)zxy .151:1.414.90.nannS._.lg20.3010lg30.4771 cos16yaxx2x1yxa222021-10 2 2 16f xR4 .fx0,23,5xf x4,xk kZ3f xx5 1721.2223.70 1712f xm n2cos,1mx 1f x 2ABCabcABC2f A1bABCABC 1812.60710,2
3、0,20,30,30,40,40,50,50,60,60,70,70,80.160 22004030702295%40.1912ABCD/AB CD1ADDCCB120BCDBFEDBFEDABCD1BF.1BDAEDADBDEF 2PEFC-PBD 20121F2F2222:1xyC ab0abP1FC3 1C 21FCAB2F 2112.1f x 20 xx1k.2223.224-410 xC2sin2 cos0aa2,4PltlCAB 1Cl 2a 234-5 10 11a 2abcd224abg221cdacbd 40 40 30 70 200 20P Kk 0.05 0.025 0.
4、010 0.005 0.001 0k 3.841 5.024 6.635 7.879 10.828 2021-10 3 2 201910 1-12 CBDCC DAABD BC 13.13 14.15 15.5 16.17.1 3222262kxk 2,63kkkZ 21(0,)A132(,)666A3A 2c 222cabABC 18160 15 0.1525 0.235 0.345 0.1555 0.165 0.0575 0.0537 2 7512522 40 40 30 45 75 70 55 125 100 100 200 22200(30 5570 45)4.8100 100 75
5、125K 4.83.841 95%40.19.1ABCD/ABCD1ADDCCB120BCD 30CDBCBD120ADCDCB90ADBADBD.BFEDABCDBFEDABCDBDDEBFEDDEDB ADDEDBDADE.BDEFEDBDEDABCDEDAD EDBDDADBDEF.2 20.1P 1:3acac2ac 1FC322222()3bacaa 2a1c2223bac C.22ABFr 24ABFSr 2ABF2ABFS l011,A x y22,B x y:1l xmy 2234690mymy 0122634myym 2212121313ABFtSttt 1t0m2ABFS3
6、 2ABF916.21.1.0,1x0,h xh x(0,1).1,x0,h xh x1,.0,x,10.h xh0,11,x,0.fx 2021-10 4 2 f x011,.20 x1x(1)0g 0,1x1,x 0,1x0g x1,x0.g x 1220gk1k 1k g x0,0,1x0g x1,x0.g x 0k0 x()0g x()g x(0,)10k()0g x220kxxk24 40k12,x x 121221xxkx x120,0 xx111201xx 12xxx()0g x()g x12(,)x x 1k 22.12sin2 cos(0)aa22sin2cosa C22yaxt42yx l2yx 2lt22yax AB1t2t1t2t 1 28(4)t ta 2212121 21 24ttttt tt t1a 23.11a1212xx 1x1x 12x 2x.2221cd 2222acbdacabcdbd2222acbdadbc22222abcd abcd1abacbd
