1、2016 ( 3 30 ) 1 2m 2m 5m A 2m B +2m C 5m D +5m 2 A B C D 3 x A x 2 B x 2 C x 2 D x 2 4 A B C D 5 A 1 B 2 C 3 D 4 6 5cm O AB=6cm OC AB C OC= A 3cm B 4cm C 5cm D 6cm 7 x 2x+a 9=0 x=2 a A 2 B 3 C 4 D 5 8 2m+n= 3 4 4m 2n A 2 B 10 C 7 D 1 9 4 4 1 AOC O BOD A B C D 10 Rt ABC BC=5 A B 1 0 4 0 ABC x C y=2x
2、6 BC A 4 B 8 C 16 D 8 ( 3 18 ) 11 0.0002016 _ 12 =_ 13 3x+6x 2 3x 3 =_ 14 x 2 7x+12=0 _ 15 ABC ABC 6 6 tanA+tanB _ 16 ABCD AB=6 AD=8 E AD AE ED=1 3 P A AB B E EF PE BC F M EF P M _ 17 =0 18 ABC B= C O BC OD AB OE AC D E OD=OE 19 y=ax+b x=1 y= 3 x= 3 y=13 1 a b 2 1 x 2 y 20 A y1= x 0 B y2= x 0 A a B
3、b 1 |a|=|b|=5 OAB 2 AB x OAB 21 1 2 x y x+y 4 22 10 12 10 100 180 10 x 1 y x 2 14400 3 15600 23 ABCD AD AB ABCD A D BC AE DC E 1 AE 2 AD=5 AB=4 ED AE F D BC FD 24 AB O C O AE C E AE O D EC AB P AC BC PB PC=1 2 1 AC BAD 2 PB AB 3 AD=3 ABC 25 y=ax 2 +bx+c P 2 4 1 b c 2 a 0 y=x+4 y D E F E F x1 x2 x2=6
4、x1 ODE OEF a a 2016 ( 3 30 ) 1 2m 2m 5m A 2m B +2m C 5m D +5m 2m 2m 5m 2m 2m 5m +5m D 2 A B C D A A B B C C D D A 3 x A x 2 B x 2 C x 2 D x 2 x 2 0 x 2 C 4 A B C D C 5 A 1 B 2 C 3 D 4 4 D 6 5cm O AB=6cm OC AB C OC= A 3cm B 4cm C 5cm D 6cm OA AC OC OA AB=6cm OC AB C AC= AB= 6=3cm O 5cm OC= = =4cm B 7
5、 x 2x+a 9=0 x=2 a A 2 B 3 C 4 D 5 x=2 a 2x+a 9=0 x=2 2 2+a 9=0 a=5 D 8 2m+n= 3 4 4m 2n A 2 B 10 C 7 D 1 2m+n= 3 4 4m 2n 4 2 2m+n 2m+n= 3 4 4m 2n=4 2 2m+n =4 2 3 =4+6=10 B 9 4 4 1 AOC O BOD A B C D = D 10 Rt ABC BC=5 A B 1 0 4 0 ABC x C y=2x 6 BC A 4 B 8 C 16 D 8 - BC AC C C y=2x 6 A B 1 0 4 0 AB=3 B
6、C=5 AC=4 y=2x 6 2x 6=4 x=5 1=4 S =4 4=16 BC 16 C ( 3 18 ) 11 0.0002016 4 1 a 10 n 0 0.0002016=2.016 10 4 2.016 10 4 12 = 1 = =1 1 13 3x+6x 2 3x 3 = 3x x 1 2 3x 3x+6x 2 3x 3 = 3x 1 2x+x 2 = 3x x 1 2 3x x 1 2 14 x 2 7x+12=0 5 - x 2 7x+12=0 x=3 x=4 = =5 5 15 ABC ABC 6 6 tanA+tanB 3 ABC 6 ab=12 a 2 +b 2
7、 =6 2 =36 tanA+tanB= + = ABC 6 ab=12 Rt ABC AB=6 a 2 +b 2 =6 2 =36 tanA+tanB= = = =3 3 16 ABCD AB=6 AD=8 E AD AE ED=1 3 P A AB B E EF PE BC F M EF P M 9 M GH AD EGM FHM MG=MH M BC EF1B EF1F2 F1F2=18 M GH AD AD CB GH AD GH BC EGM FHM EGM FHM MG=MH M BC P A BF1=AE=2 P B F2+ EBF1 BEF1+ EBF1 F2= EBF1 EF
8、1B= EF1F2 EF1B EF1F2 F1F2=18 M1M2 EF1F2 M1M2= F1F2=9 9 17 =0 x x+1 x 1 3 x 1 x+1 =0 x=2 x=2 x+1 x 1 0 x=2 18 ABC B= C O BC OD AB OE AC D E OD=OE BO=CO BDO CEO DO=EO O BC BO=CO OD AB OE AC BDO= BDO CEO BDO CEO AAS DO=EO 19 y=ax+b x=1 y= 3 x= 3 y=13 1 a b 2 1 x 2 y 1 x y y=ax+b a b 2 y x x y 1 x=1 y=
9、3 x= 3 y=13 2 y= 4x+1 x= 1 x 2 1 2 7 y 5 20 A y1= x 0 B y2= x 0 A a B b 1 |a|=|b|=5 OAB 2 AB x OAB k 1 1 AC x C BD x D A 5 B 5 k S =S =1 S =S ABDC S S 2 2 AB y H k S =S +S 1 1 AC x C BD x D |a|=|b|=5 a=5 b=5 x=5 y1= = A 5 y=5 =5 x= B 5 S = 2=1 S = 2=1 S =S ABDC S S = +5 5+ 1 1= 2 2 AB y H AB x S =S +S = 2+ 2=2 21 1 2 x y x+y 4
