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O00A12B45=+ttR1tPxP


O00A12B45=+ttR

1tPxPP

2OABPt


:

O(0,0)A(1,2)B(4,5)=+t,:(1)t....doc

O(0,0)A(1,2)B(4,5)=+t,: (1)t,Px?y?P? (2)OABP?,...

4 4.2 ....doc

b B.3a-b C.-a+3b D.a+3b ?-=4, ?... x B. ...9. O(0,0),A(1,2),B(4,5), (t...

...O(0,0),B(1,2),Ax,SABO=2,....doc

,O(0,0),B(1,2),Ax,SABO=2,A. :A(x,0), S...

A(-2,0),B(2,0),PAB....doc

A(-2,0),B(2,0),PAB,="t...C+=1(x2). (2)-1<t<0,Cx...

...1,2),A(8,0),B(n,t),C(ksin,t)(0).(1)..._.doc

,a=(-1,2),A(8,0),B(n,t),C(ksin,t)(0). (1)a,||=||(O),....

C(t,)(tR,t0)xOA,....doc

C(t,)(tR,t0)xOA,yOB,O. (1):OAB; (2)y=-2x+4C...

1_(1)_.ppt

? ? ? 0.6(1)4m3,5...? ? 1-2 ( A= B=11....

C (tR,t0)xOA,y....doc

C (tR,t0)xOA,yOB,O. (1):AOB; (2)2x+y-4=0C...

:C(t,)(tR,t0)xO,A,....doc

:C(t,)(tR,t0)xO,A,yOB,O, (1):OAB; (2)y=-2x+4C...

2011-2012-1(2)B_.ppt

a I 2 ?0 3 (cos 300 ? cos1500 ) 4? a 3 3 O I 3 b 2 c 2.I1...

O(0,0),A(-2,1),B(2,1),CM(x,y)..._.doc

O(0,0),A(-2,1),B(2,1),CM(x,y). (1)C; (2)Q(x0,y0)(-2<x0<2)C,CQ...

(2015)O:x2+y2=4,A(,0),AB....doc

(2015)O:x2+y2=4,A(,0),ABO1O,B. (1); (2)OBO1,...

2011-2012-1(2)B_.ppt

B1 ? B2 ? B3 =0 I O1, 2, B1 ? 0, B2 ? 0 a 0= B 3 2I ?0 3 (cos ...

C(t,)(tR,t0)xO,A....doc

C(t,)(tR,t0)xO,AyO,B,O (1)OAB; (2)y=-2x+4CM,N...

AB4,AB+2B=O,r(B) =2,|E+....doc

AB4,AB+2B=O,r(B) =2,|E+A|=|E+2A|=0, (1)A; (2)A; (3)|A+3E|....

25.2014()4-2.doc

?y=-2. ? :(0,-2) 7. O(0,0)A(1,2)B(4,5)OP=OA+tAB,: (1)t ,P x ? y ?P ...

C:+=1(a>b>0)(1,).(1)C..._.doc

(2)CPO:x2+y2=r2,(r>0),A,B ()PAPB=60,r; (),x...

2().doc

2i 1. ? 1? i A.1+i B.1?i C.?1+i D.?1?i 2 2. U={1,2,3,4,5}, A={1,2},B={x|x ?5x+6=0}, A ? ? ? U ...

+=1(a>b>0)A(-2,0),B(2,0),....doc

(2)CE:x2+y2=4(CA,B),ACx=2R,DRB,CDE˨,....

P(-1,)E:+=1(a>b>0),F1F2....doc

=1(a>b>0),F1F2E,O,PF1x. (1)E; (2)ABE,+=(0<<4,...

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