FrU@9!!9*!a(1)m%i45k&@(2)m%%7H*B(1)rn%%&*@(2)mgs9a~emm~~~~~xm=-.-B%mrn+&a93n~-+&am%#a%%%%ds%-+&@m%%I+WPa%1DE%#mrn+&@flrl&§S&m.X+-+&i$P;flrl#lgidBH(originalpropo-'sition),33-+fly#EI$~B@JSI@~(inverseproposition).&$kE%,$RE%a%D11---._-''Zq,Rr)p".+sem(negativeproposition).&&&$f,,'j~#3~$!&/MSK,e3ll-z"Sp,Rr)q","19.",iff*"z$.,aP&essB.&sa%'"$+p,R31q".&IPf:4;sr~~~B5;3-+-tfti~~~ie44#E!Seff.I~MK+BS-+S~H~~Y&h(inversemidnegativepropmition).~BBS',~UII'I.1"%P,D!JqY',a~&ern@~&&%"Blq9g!jp".4312~$U%~BIW!B"Fl&%A%i%HBBiT'i?"?BP&'ENi&!B&BS"mB%*F6,rn&fi5rn%"*II@iSRlI"Ji?l%T"8P,WIJ4"%SM.&lrH,3&+?iBtJ&~%&&B,fiLtS&EE%ass@.@Jan,-Fgm+&g.e:g.I(1)sx>a2+b2,W!Jx>2ab,I(2)ab=O,JIJa=O,;rRr1)%SrRr%,IfIra(2)%#&a.I-&a."sp,J!Jd'%BrRrH9EtEhP3i~%BxU%aq.2@;%kin%'I%.IpGtlq.ZtFIIP=%9I#Hi#pBqmAfi&*(sufficientcondition),qgpm&E(necessarycondi-,IItion).IlmM9a(1)ETC.9a,IPI-7sIx>a2+b2*x>2ab,Qa%+J!i(1'1Ifill4"x>a2+b2"E"x>2ab"M%%,"z>2ab"g5X%+&"#x<2ab,I14x
a2+@"B(J&bS@.a.&a&&,a.iaL.Ix>a2+b2&a,I%R*x>2ab&A.8IT3iJ"gp9R!Jq"%dM.&lr@+!%&%14a,"x>2ab"K“x>Ia2+bznJ&~)i~.*'ILtSpEqm%9%#?II(1)Ex=1,WrJ2-4x+3=0;(3)sina=sinPBa=p&&*A#;..,.,..-8.:%,.i",.-(-....-,pi@,q#ssms.,..,:.':,.,.$.:..,!,%:;;....~,-.....I,,.....-1:.-.....@k;zer'E;J%+9p-q,ENpPqrn%.ft.%f+,!?5%Pma\%%#.B-27-rn9PP,fiUpd3Bqrn&\B%4+9q&EpiXJ%%%#..-%%,BUR%&p*q,X%PP,%it!*Pw.&W,%.fl3%,P5%qIKI%ff.&Z&WRi%%E&@(sufficientandnecessarycondition).a%,BARP$&qt%%3?&f+,@/t,q-&O"P~Q*BPrn%S*#*A***"tit&"P?BFCTq"@%&%,&SE!PW,%/t,P%4§%%g%.14."q&R&L#3--+-------.--1.TjillB3uP,J4n"&&%Bw&E@?BHZ&BtB&@rmi?9#k&4+?-----------------------A----------(1,$$FBI.+b-%S%a%YE@A-+B%f6,~!IE%aGFiiifaYfigA---A-..---.-------.-.-------(2)2$g$Gj(a.)i#%%/~?d~a.=n+c(cBXTWrR!lBW{a.)%&E?5T1BtlZPgiWi_----_-------_-_---_-_--__.--(3%~@4a%FE~&T@Af&Sf.MJb%a$YE@S-b.-:\.2.&TW&B*.ptql%Pff-&%F?-------.-.------------+.-(1)8:~?4~+4,---q:J=Jm;--.----..----.-..-.---,,11",.C-.-