1、 2016-2017 8 5 150 120 110 1120 2122 2325 2628 40 40 22 20 28 150 10 4 40 . 1 A B C D 2 1 2 A B C D 3 A 4B 2.2020020002 C 3 9D 1 4 B 0 , 3 A x B x C y D y 5 , ( ) A B C D 6 A 93 B 2 ( 4) 16 C 2 ( 3) 3 D 81 9 25 5 7 P1(-2 1) P2(-2 -1) P1 P2( ) A B y C x D 8 1 a b b c a c 2 3 4 a b c b a c 5 6 A 1 B 2
2、 C 3 D 4 9 O A 3 2 B 3 4 A 1 B 2 C 3 D 4 10 ABCD EF C D A B C D 10 4 40 . 11 125 12 P x y |x|=9 y 2 =4 P 13 , A , B, AB , 16 14 6.213 =2.493 62.13 =7.882 621.3 = 15 16 AB CD O 17 3 11 18 19 A B 1 0 0 2 AB A1B1 A1 B1 2 a b 3 a+b= 20 P 1 1 1 2 2 0 3 3 2 2017 P 21 12 22 10 22 21 ( 6 12 1 2 2017 3 0.04
3、27 ( 3) ( 1) 2 2 3 16 64 ( 5) 3 2 22 ( 5 10 1 2 ( 4) 4 x 2 3 1 ( 3) 9 0 3 x 23 8 24,25 6 20 23 8 ABC 5 3 1 A1 B1 C1 2 A1B1C1 3 ABC 24 6 DF BE BE 1 2 1 2 25 6 3 x 1 y xy 26 27 8 28 12 28 26 8 AB CD O 3 2 27 8 A B C BD CF 28 12 1 2 P 1 3 P OM P A B 2 1 P A B P A B O 1 2 3 2017 10 4 40 1 2 3 4 5 6 7 8
4、9 10 B C C B D C C A C C 10 4 40 11 - 5 12 (- 9 , 2 ) 13 14 24.93 15 16 0 130 17 11 3 18 25 19 2 20 ( 2017 , 1 ) 21 12 22 10 22 21 1 0.2 ( 3) 3 ( 1) .4 0.2 3 3 1 1.2 .6 2 4 4 5 (2 3) .4 4 4 5 2 3 37 .6 22 1 2 ( 4) 4 x 44 x .2 42 x X = 6 2 .5 2 3 1 ( 3) 9 0 3 x 3 1 ( 3) 9 3 x 3 ( 3) 27 x 3 3 27 x.2 3
5、3 x0 x .5 23 8 24,25 6 20 23 1 A1 4 7 B1 1 2 C1 6 4 . .3 2 . .5 3 S =S EBGF S S S =25 15 2 5 3= 19 2 .8 24 DF BE ABC BE 1 2 1 2 ABC BE , 1 25 : 3 x + 1 y = 0 30 10 x y 3 1 x y .3 3 ( 1) 4 xy xy 2 .6 26 27 8 28 12 28 26 3 2 ) .2 0 90 .4 0 90 x = 0 18 .6 0 36 .8 27 BD CF , .2 .3 .6 , .8 28 1 .2 3 P CD E .4 .6 .8 2 P BA .10 P AB .12
