人教标准的么,我们发到37期了!、1 ~ 5.CCDDC6 ~ 10.ABDCB"、11. - 312. x < 113. 1a + 214. #$15. x = - 216. ①②④17. 3018. #$19. 4320. 11,60,61%、21. 1.22.x = - 13 .23.&:(1)’() ABCD *+, = 52- 12 × 2 × 4 - 12 × 1 × 2 - 12 × 3 × 3 - 12 × 2 × 3 = 252;(2)-./0123 AB = 槡20,BC = 槡5,∴ AB2+ BC2=(槡20)2+(槡5)2= 25.4 AC2= 25,∴ AB2+ BC2= AC2.∴ ∠B = 90°.24.&:(1)∵ 5 P *678(2,32),∴ AP = 2,OA = 32 .∵ PN = 4,∴ AN = 6,∴ 5 N *678(6,32).95 N(6,32)*67:; y = kx ,y = 92 .∴ M P = 92 - 32 = 3.∴ S△APM= 12 × 2 × 3 = 3.25.&:?@ABCDEFAGH xIJKLM,NOP3:100 ×(1180 + 1x)= 1,&3 x = 225.QRS,x = 225 TUVB*&,WXYZ[P.]:N@ABCDEFAGH 225 IJKLM^_.26.&:(1)‘ AB ⊥ M N,ab8 B.c Rt△ABP ?8 24 ?.’、27.&:(1)?K?,y = 3.6,4 - 3.6 = 0.4(?),k?¢£?M?¤¥? 2010 |§¨ 0.4 ?;② = y = 3.2 >,x = 183.2 = 5.625,5.625 额发图好了我们同学发的