1、 1C 2A 3B 4D 5B 6B 7C 8A 9B 10A 11D 12A 13 1480 151617123.1 3cos2A(0,)A 22a3sin2B 5(0,)6B 2C12 32ABCSab 23B6C1sin32ABCSabC 181222955yx27.110 15 1923 28195y+=51522222222110305792 1405 3 1922123455 35iiiiix ynxybxnx222919355a yx222955yx.2222955nan=+nannSna 6127.2S=7163.8S=1061272S1071638S2000 801600=8
2、07.19121GHFABEDBCFEABEDBEBCFEGHFHFBEHF.BCEFBHFEBHEF2BCEF2BCBHHBC.2112,11221 ln1ln(0)h xxxxxxx x 212121xxhxxxx211xxx0hx1x11eth x 1th x1,tmin10h xh 11et1tmin0h x 2f x11,xf xg x22,x g x 121212f xg xfxgxxx211212121 ln12xaxxaxaxxx 12122axx,x 221ln2(0)424aaF xxaxxxF x 2eaxln20 xa2e0aFF x023231121222axaxFx
3、xxxx20002100 xaxx 00 xx0Fx0 xx0Fx F x00,x0,xF x2002001ln2424aaF xxaxx 200210 xax 212ln2(0)xxxxxx211220 xxxxx0,100,1x0 x F x00F x001x 12yxx0,1 2212cos2:sinxCy20a 1,B2,AA21:8 cos120C 228 2 cos12024 cos30222,cosxyx B2C22430 xyx2221xy2cos2:sinxCy 2:xtlyattyaxtana 12,MN123 12,MN22:4 cos30C 2112224cos304cos30222222912cos304cos30 221cos1tan00a.
