2zz3z1)4z2)5z3)QMRd(AR)LACLMCSAC2SMC2SMC1SAC1OQ2P2Q1P1SAC1SMC1P67zzSMCLMCMR==8z9zz10zz–11z1)z12z2)z13zz14Q*P*MCMRMCQ**PCMC=AR=PCMCMRdQ**()Q**PCd(AR)MRQPmaxP*0Q*OP*Q*P15MCQ**PCd(AR)MRQOP*Q*P*P*••PPmax16zz17z?1)2)DP=P3Q=Q3P1P2P3Q3P3Q1Q2P1P2QPODMRQ1Q2Q3QOP3Q3(P1-P3)Q1+(P2-P3)(Q2-Q1)PP1P2P320zzzz21z221)2)23zP1=zQ1=zP2=zQ2=zQT==Q1+Q224zMR1=zMR2=zMRT=zC(QT)=zMC(QT)=25zMR1=MR2=MC26Qd2(AR2)MR2d1(AR1)MR1MRTMR1=MR2MRTMR1MR2PO27MCQd2(AR2)MR2Pd1(AR1)MR1MRTOQT•QTMC•MC=MRT•MR1=MR2=MCQ2P2Q1P1::28z21d22d11MRMRe11PMRe11PMR21=−=+=)()()e11()e11(PP12dd21−−=29zzz–30zz31d2MR2MCd1MR1Q*P*d1QPO