... B/(7),/+/(7Q,/M/(7BB,>&U&B/(7),/+/(7Q,/M/(7BB,1NB/(7BB,P/N(7),/(7Q,P/+/M1(7B!,/(7B!,/BO17DCâu 2 2 0&94(1,5 điểm),0*B!1(7M,*B!>&U&0*B!1(7M,*B!0*B!1(7BM,01(7BM,/B!01(7M,,.0*B)1+>&U&.0*B)1+.01+/B).01BC01BC.01MCâu ... ≤>&U&"WXW0-Y7)Z7.Z7BZ!ZBZ.Z)ZO[W4XUN(7),/)P/N(7.,/.P/N(7B,/BP/!/O1!/!/!/!/O1OCâu 5 2 0&94:(1 điểm)( ) ( )B . !x x− − =>&U&#( ) ( )B . !x x− − =\(0*B,1!]^_(0*.,1! 8 W&(0*B,1!1`01B 8 W&(0*.,1!1`01. 8 _W.&W4?&_UXW0%U( ... =\(0*B,1!]^_(0*.,1! 8 W&(0*B,1!1`01B 8 W&(0*.,1!1`01. 8 _W.&W4?&_UXW0%U( ) ( )B ....