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(1) .(2) .(3) (4) .(5) (6) .(1) (2) (3) (4) k=tg 0,(xa)2+(yb)2=r2x2+y2+Dx+Ey+F=0()1412 3451.)2.kk3.4.L1: A1x+B1y+C1=0 L2: A2x+B2y+C2=0 L1L2 A1A2+B1B2=05.L1L2tan= tan=| |6.7.y=xAx+By+C=0Ax+By+C=0y=xf(x,y)=0(a.b)y=xy=xxP(x0,y0),(xa)2+(yb)2=r2.(x0a)2+(y0b)2r2P(x0,y0) (x0a)2+(y0b)2rd=rdr+Rdr+R|Rr|dr+Rd|Rr|d0m1m .2L . m2 1 2P . xAB1 MNAMB2PAPB120e.1 M A(a,0)B(a,0)AMBAMBM 0e0y0 P P P.01A(0,1)x 30lMNMNAlF(c,0)b1 lykxm PMNAP k .2Cx lCABxM1l2C.1C .l lll2lx M(1,0) 1a0ab02a.1234 xB AC .12ACykxmm.12a10c4a5b3c42 AC AC x4 .ykxmykxm12 PP e.e121a,b,c32e.P 1 2Pd e P P 3e 12-111. =1a0,b0 A0,-bBa,012km0CDCDAm12 y CDA m4 m22F MC1PFM1PC22FlC1ADC2BCABCD l ADBCO1O2 C1 P =21PC2 2l C1 ADO1 C2 BCO2 l21xy3M1-1l P1 P2P1 P2Q Ql P1QP2y=-1P1QP2l
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