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1pq311a-a2aba+b=021aa2ab3031a234n1aaa2003a4001212001122312n00n0341230005620121ababa0b02abcc0abc3a+ba-2=0b+2=0a=2b=-2a+b=04abcdm1=5121=2==12311x72321++--+-2mn1212345312341abb1b=0b20a=0b034567212331234112342123ab4312ab311[]2212(x+y)[]33[]445[]26x=-1y=[]37-[]1248b2b+1=7-b[]123411ax+b=0xaba2ax=bxaba31421xabca234[]1-21px,yx0y0px,yx0y0px,yx0y0px,yx0y02px,yxy0xpxyyx0y3px,y1px,yx|y|2px,yy|x|3px,y41pa,bx2pa,bx3pa,b12xyxyxyx102341kb1k0x2k0x3b0yx4b05b0yx2abc1a2cyc0yxc=0ca2aa-00=aaa;a3(01)65764aaa5a6127849;;a.;b.;c..10.(-)a00;a00n0n=1a=1/a0,p111.31;26;3124;51++261212345671.41.51212(ab)(a2abb2)a3b3(ab)(a2abb2)a3b3a2b2(ab)22ab(ab)2(ab)24ab343121=m2342.11231a=ba+c=b+c2a=bac=bc(c0)41axb1ab56123......abc100a+10b+cabcxy3x-y=3x=y+3x-3=yxy3x-y=3;svt2.2112304512617(1)(2)2.31ababaaa234aba+cb+cabacbc(c0)abacbc(c0)ab,bcacab,cda+cb+d.51axbaxbaxaxaxb(a0)12345x1()()1l()()()()()6x12()2.4122xabxbc3bb0axx41=025xyoxyxy2ababbapppp()pp31p(x,y)p(x,y)p(x,y)p(x,y)2p(x,y)xxp(x,y)yyp(x,y)xyxyp003p(x,y)xyp(x,y)xy4xyb0kk0yx(1)(x)(0b)x(2)byb0yxb=0b0yx(3)l(4)2(5)2k0yxk0yx30b00kbk0b0y0xyxb0yyxk0b0y0xyxb0yyxb=041k0yx2k0yx51k0yx2k0yx6k0kk0kbby:ykxb(k0):px0y0y=kx+b(kx-y+b=0):3.41kk0xx02x0y0xy3kk0k0yoxyoxxx0yy0k0yxxx0yy0k0yx4k5pa1opa2oapbpopaoapbpcef=pdea=3.51yx231m2xa,byccdxycdcmdab410~16123x(1)(2)yyxyx(3)()yyy(4)(5)x0x=0x()0x(6)aa0a07y010-10.8x++-9xya11(3xx510x=yxyx6a0a0y0xy0x12x=3xyxxyx4x=y12x=3xyxxyx4x=y700x=y08xx0x=0x0x1ax1y1bx2y2ababa0x1b23()yxyxyxyx3.63.7y0kxb0xy0kxb0xy0kxb0xy00xy00xy00x4.11212345612347123458123491011123bcbadbaecae16011123151216abcdefabcdef15abcdef35abcdef36abcdef17abcdabcdcdab)abcdcdab123~818abcdabcd1219201212321123221212323244.21212334123abcabcabc56122abcdefabcdef31sas2asa3ssshlhl4134.311112121212121241212345rtabcrtabc21:2:3rc/24:23abc56603/27hl1.=(a+b)(a-b)3.12n2aqpqp.p123ab0.1ab,x,b:xy.a,c(cb),.2x0ykxbxaxxrxxxx1bxax2bxaxx1nloglogloglogloglogloglogloglogloglog0110.01acn180180017451857ahcossintancossincosk;sincoscossin(1)r3xcossin10.sinsinsin111.12.abcsin13.abab012acbcabcaacab32aabbaaabc()10.,m(x,y)ab,011.12.=+2cccc45lx90ax1.l3x+4y+5=0l3x+4y+c=0l4x-3y+c=02.0(5)axeydx4drpfpfpfpfmpx34