1、 2015 1 I 2 I 2B 3 4 I 60 12 5 1 z 1 + 3 i z =1 +i |z| A 2 2B 2C 2D 2 2 U=N 1 2 |1 1 A x N og x U A A 1,2 B 1 C 0,1,2 D 0,l 3 ABC A =120 .2 AB AC , BC A 2 B 4 C 2 3D 12 4 9 2 A. 93 2 B. 93 C. 93 4 D. 33 5 11 1 ( ,1), 1 , ( ) 2 nx x e a nx b a b c A cba B b ca C abc D b ac 6. A. 21 13B. 13 21C. 21 34
2、D. 34 217 y = -4x +a A 1 6B 1 3C. 1 2D. 2 38 , (0, ) 2 tan =4 tan tan A 1 4B 3 4C. 3 4 2D. 3 29 n a n Sn, S 170,S 180 15 12 1 2 15 , , , S SS a a a A. 7 7 S aB. 8 8 S aC. 9 9 S aD. 10 10 S a10 R f x xR,f x +f -x =0 12 , 1, x x a , 12 xx , 21 ( ) ( ) f x f x ( ) (0) f a f 1 ( ) ( ) 2 a f f a 13 ( ) (
3、 3) 1 a ff a 13 ( ) ( ) 1 a f f a a A B C D 11 22 1 22 : 1( 0, 0) xy C a b ab 2 2 : 2 ( 0) C y px p A B AB F A ( , 32 B ( , 43 ) C , 64 D 0, 6 12 2 1 ( ) 2 nx k f x x e xx k A 2 1 e e B 2 1 e e C 2 2 1 e e D 1 e e 90 13 21 22 24 4 5 13 2 1 () x x k y=kx y= 2 x 14 ( ) cos(2 ) 4 f x x 12 ( ) ( ) f x f
4、 x 12 () x x k k Z () fx 5 , 88 () fx 8 () fx ( ) sin(2 ) 4 g x x _ 15 0 1 2 3 4 1 3 2 4 16. 2 3 1 (1 ) 1, 1 , 3 2, og x x k x x k x a k () fx 0,2 a _ 6 70 17 12 a n a 1 =2 * 1 2 2( 2, ) nn a a n n n N I 23 , aa n an II 1 2 n n n a b b n n S n 18 12 ADMN ABCD AB =2AD =6 I E AB BM NDE AB E D- CE -M 6
5、 AE 19 12 A B 88 88 100 I A B l A 45 10 1 B 60 15 I i X l A 1 B X ii 5 B 150 20 12 22 22 : 1( 0) xy C a b ab 1 2 e F 1 l 24 7 I C n A B F PQ AFP= BFQ PQ 21 12 ( ) 1 3( ) f x a nx ax a R I a= -1 () fx y= () fx 2 (2) f 45 1,2 t 32 ( ) ( ) 2 m g x x x f x t 3 m * 1 2 1 3 1 4 1 1 ( 2, ) 234 n n n nn n n N nn 22 23 24 2B 22 10 4-1: ABC AB =AC BD AC BD A DB F AD BC E I ACBF AF =2 7 BD =3 BE 23 10 4-4: x C 2cos , ( 1 2sin , x y l 2 cos sin 6 I C n C P l 45 l Q PQ 24 10 4-5: ( ) | 2 | 3 , 0 f x x m x m I m=3 () fx 1-2x f x 0 x| x 1 m
