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Đề, đáp án thi thử ĐH của Bứac Ninh (mới, hay)

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       !" #$"!%       y x mx m= − + − m  m   !"m#$%#&$#x   ! "!%  '()*+,-"+.  + + + =x x /  ()*+,-"+.      0x x m+ + + − = m !"m#()*+,-"+1+,2 ( ) 3 x ∈ − #$&"!%  '2()*+,-"+.       x y xy x y xy + − =   + + =   4516+7&%+7+189-+,11:;+ 1:6;+9<+$1:=+,>&?;+/ #$'&"!%  !-+,:(@+,0xy,AB6CD+A03E3 ()*+,-"+)F+,(G+,-+,,1B.  0x y− + = /HC ()*+,-"+)F+,@+,I$+B,/  !J+#JK+,-L1M&6N+,hO+,P,M&+?C( -+,?)F+,-<+6+J+r/  "+1(Q/ABD+QO,G+$A/BC-N+,: 67+QABQBQAM&R(:(@+,OAB?,1 α / S)F+,Q4"+1(/I+,5-N+,4G<+,-<++?C( ,ABQA&=+,,1B/ #$"!% 6T)*+,  x y z 5U+.  V x y z+ + = /I+,+-N+,.          x y y z z x+ + + + + ≤ / WWWWWWWWW()WWWWWWWWW// ""#$ % "" &' "!% *+,# Hm 1X.    y x x= − + !YZ. ¡ 0V QB!.y[   Ex x− y[ 0 ( ) ( ) 03 0  3   x y x y = = ⇔  = = −   \X+,6C++,6C+%$%#& 0V '$+3](6+,6C+7+ 0V Z!.!G^I+,_3 H`+,a( 0V *+,#!"m#$%#&$#x  y[   Ex mx− y[ 0 0  x x m =  ⇔  =  0V 41%- 0m ⇔ ≠ 0V 4$%#&$#x  ( ) ( ) b  0   bb  0 y m y =  ⇔ ⇔ =  >   0V \.m X,-;+" 0V "!% *+,#'c!)R+,, Z. 3  x k k π π ≠ + ∈¢ 0V c! ( )   +  + x x⇔ + = + ( ) ( )    +  /  +x x x x x⇒ + = +   + 0  + /  x x x x x + =  ⇔  + =  0V d  + 0  x x x l π π + = ⇔ = − + 3 l ∈ ¢ d    /+    +  8x x x x x+ = ⇔ + = .H=+,2 0V \+,2c! 0V *+,#B2+&]++,2c!IK+ Z:   3 t x t= + ≥     t x − ⇒ = 0V c!     0t t m⇒ + + − =  H ( ) ) 3  3 x t  ∈ − ⇒ ∈  0V c!1+,2 ( ) 3 x ∈ − ⇔ c!1+,2 ) 3 t  ∈  ef+,()*+,((      g  m+ ≤ − < + 0V \.     m− − < ≤ − 0V &"!% *+,#'2c! !hc!;& ( ) ( )    0  x x y y =  ⇒ − − = ⇔  =  0V dHx Oc!&)R  8y = − ± 0V dHy Oc!&)R.    x − ± = 0V \+,22.1+,2 0V *+,#\](%+7+ TUO,89)*+,I+,,89#0 I+,;& ij+-+,8-J#^C(9.1  8 C  ij+-+,V-J#^C(9.1  V C  ij+-+,g<+$#:-J<+$.1  g A  H]O1.  8 C /  V C /  g A  8E0 0V j+5U+O7&;&+)+,10I+,;& !)*+,%1.    8  8 / /C C A  0 0V Q&O-1.8E0k0 0;+]( 0V '&"!% *+,#\](c!)F+,@+, 'jA  #^I+,#A>&)F+,(G+,BB  !"A  &?Z!I$+B 0V !")RA  3 0V D-l*((&OC+Z!I$+B ( ) 03n = r 0V \]()Rc!)F+,@+,.yk 0 0V *+,#!J+#J"+K+,-L =+,IJ+#J.H B/h 0V e2+JO"+K+,-L. 0  V/ / /+ 8  S r= 0V H   0 V + 8  r h  0V *+,&# Y+,1,9:67+:O.'jmn;+)R"+ C&4-7+$+ABBA"1,1,9:67+ :O&O-,&=+,6N+,+&&O-4 4m 4n &O-4G<+,-<++?C(,AB/ 0V e,G+oA+7+&O-A4m@+,+,mG+)F+, $hA, 0V D-B&=+,,1(QAm&O-QA&=+,,1B/ 0V "!% I+,+6p@+,I q(TL+,BZ!=T)*+,.  x y+ 33             x y x y x y + + + + + + ≤ = 0V !)*+,%1.           3     y z z x y z z x + + + + + ≤ + ≤ 0V H! ( ) V E   x y z+ + + ≤ = &O-M&(I+,+ 0V ep&6N+,^O-.        V    x y y z x y z z x + =   + = ⇔ = = =   + =  0V

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