河北省正定县第三中学2018-2019学年高二3月月考(书法音美班)数学试题 Word版含答案

3 I 12 5 60 1. M 3, 3 2 A(0,3) B(0,3) C(3,0) D(3,0) 2. x 2 y 2 2x ' y ' 4 A x y' ' x 1y 4 B x' y 4x ' y C. x' x y ' 4 y D x' y' 4 1 4 x y 3. =4sin Ax2+y+22=4 Bx2+y22=4 Cx22+y2=4 Dx+22+y2=4 4. x y 3 cos 5 sin A 3 5 B 4 5 C. 9 25 D 16 25 5. M (4, ) cos( ) 2 3 3 A2 B4 C6 D8 6. tan 0 A. sin 0 B. cos 0 7. tan( ) 3,sin2 = ( ) 4 D 4 3 C. sin 2 0 A 4 B 4 3 5 D. cos2 0 C 4 5 8. y sin x y cos x A B C D 9. >00 x x 5 f(x)=sin( x+ ) 4 4 =( ) 10 f (x) 2sin(x )( 0, ) , 2 2 A 2, 3 B 2, 6 C 4, 6 D 4, 3 11. y sin x y f x 2 A.y f x B.y f x C.y f xx 2 D.y f x - 2 0 12. ABCD1 BA E AE 1 EC ED sin CED D C E A 3 10 10 A B B 10 10 C 5 10 D 5 15 II II 5 13. sin(675 0 ) sin(2 ) sin( ) 14. P12 cos( 3 2 ) cos( ) . 2 15. y 1 2 cos2 (2x) _______. 16. l P040 x 4 3 t 2 t x2+y2=7 y 1 2 t AB |AB|= 10 17. f (x) 2 cos x 12 , x R (1) f 3 (2) cos 3 5 , 3 2 , 2 f 6 18. f (x) 2sin2 x 2 3 sin x cos x 1 f (x) x [ , ] f (x) . 63 19. sin( ) 2 M 42 x y 2 cos 2 2 sin ( 1 2 M . 20. xOy C a O x l 1 C l 2 M10 l l1 C AB M AB 1.B 2.C 3.B 4.B 5.A. 6.C 7.C 8.A 9.A 10.A 11.D 12.B 13. 2 2 14.3 15. 2 16.2 l t x2+y2=7 4+ t2+ 2=7 A B t1 t2 t1+t2=4 t1t2=9 |AB|=|t2t1|= =2 2 17.(1) f 3 2 cos 3 12 2 cos 4 1 2 cos 3 , 5 3 2 , 2 sin 1 cos2 4 5 f 6 = 2 cos 4 2 cos cos 4 sin sin 4 1 5 . 18. f (x) 3 sin 2x cos 2x 2sin(2x ) 6 f (x) T 2 2 sin(2x ) 0 x k (k Z ) 6 2 12 f (x) ( k , 0), (k Z ) 2 12 2k 2x 2k , k Z 2 6 2 -----------3 ----------5 ----------7 f x k 3 , k 6 k Z ----------9 x [ , ] 2x 5 1 sin(2x ) 1 1 f (x) 2 63 6 66 2 6 x f (x) 1 x f (x) 2 ------14 6 6 191 x y 1 0 6 3 24 2 2 14 20.1 C a y+2=0 cos sin =2 l x 2 l1 t t1t2=1|MA||MB|=|t1t2|=1