Tuyen tap 144 de on thi vao 10(Cuc Hot)

####################M#A# #T#R# #N# ### # #K#I# #M# #T#R#A# #H# #C# #K# # #I#I#� � � � �

#C# #p# ### ##C#h# # ### ###N#h# #n# #b#i# #t###T#h# #n#g# #h#i# #u###V# #n# � � � � � � � � �

#d# #n#g###C# #n#g###########M# #c# ### # #t#h# #p###M# #c# ### # � � � � � � �

#c#a#o#######1#.# #H# # #h#a#i# #p#h# # #n#g# #t#r# #n#h# #b# #c# #n#h# #t# � � � � � �

#h#a#i# # #n##1#1# #t#i# #t#######V# #n# #d# #n#g# ### # #c# #h#a#i# � � � � � �

#p#h# # #n#g# #p#h# #p# #g#i# #i# #h# # #h#a#i# #p#h# # #n#g# #t#r# #n#h# � � � � � � � �

#b# #c# #n#h# #t# #h#a#i# # #n#########S# # #c# #u##S# # ###i# #m# # # # #T# # � � � � � � � �

#l# # #%#######B#2# # # # # # # # # # # # # # # # # # #1## # # # # # # # # # # #�

# # # # # # # # # # #1#####1##1### #=# #1#0#%#####2#.# #H# #m# #s# # #y# #=# # #� �

# # # # # # #a#x#2# #(#a# ### #0#)#.# #P#h# # #n#g# #t#r# #n#h# #b# #c# #h#a#i# � � � �

#m# #t# # #n###2#4# #t#i# #t###H#i# #u# #k#h# #i# #n#i# #m# #p#h# # #n#g# � � � � � � � �

#t#r# #n#h# #b# #c# #h#a#i# #m# #t# # #n#.###H#i# #u# #c# #c# #t# #n#h# � � � � � � �

#c#h# #t# #c# #a# #h# #m# #s# # #y# #=# #a#x#2#.##B#i# #t# #c# #c#h# #g#i# #i# � � � � � � �

#p#h# # #n#g# #t#r# #n#h# #b# #c# #h#a#i# #m# #t# # #n# #b# #n#g# #c# #n#g# � � � � � � � �

#t#h# #c# #n#g#h#i# #m#.###B#i# #t# #v# # ### # #t#h# # #c# #a# #h# #m# #s# # � � � � � � � � �

#y# #=# #a#x#2# #v# #i# #c# #c# #g#i# # #t#r# # #c# #a# #a#.##H#i# #u# #v# # � � � � � � �

#v# #i# ### # #n#g# #t#r# #n###2#3# #t#i# #t#######H#i# #u# #c# #c# #t# #n#h# � � � � � � � �

#c#h# #t# #v# # #g# #c# #v# #i# ### # #n#g# #t#r# #n#.##H#i# #u# ### #n#h# #l# #� � � � � � � � � �

#v# # #t# # #g#i# #c# #n# #i# #t#i# #p#.##V# #n# #d# #n#g# #t# #n#h# #c#h# #t# � � � � � � � � �

### # #g#i# #i# #c# #c# #b# #i# #t#o# #n# #t#h# #c# #t# #.#######S# # #c# #u#� � � � � � � � �

#S# # ###i# #m# # # # #T# # #l# # #%#######B#5#b# # # # # # # # # # # # # # # # � � � �

# # #1## # # # # # # # # # # # # # # # # # # # # # #1#,#5###B#5#a# # # # # # # #

# # # # # # # # # # #1## # # # # # # # # # # # # # # # # # # # # #1#,#5###2#

#3### #=# #3#0#%#####4#.# #H# #n#h# #t#r# #,# #h# #n#h# #n# #n#,# #h# #n#h# � � � � �

#c# #u###1#0# #t#i# #t###B#i# #t# #c# #c# #c# #n#g# #t#h# #c# #t# #n#h# � � � � � � �

#d#i# #n# #t# #c#h# #x#u#n#g# #q#u#a#n#h# #v# # #t#h# # #t# #c#h# #c# #c# � � � � � �

#h# #n#h###V# #n# #d# #n#g# #v# #o# #v#i# #c# #t# #n#h# #t#o# #n# #c# #c# � � � � � � � �

### # #K#I# #M# #T#R#A# #H# #C# #K# # #I#I##M# #N#:# #T#O# #N# #-# #L# #P# #9##� � � � � � �

#I#.# #L# # #t#h#u#y# #t#:# #(#2###)## #C# #u# #1#:# #(#1###)# #C#h#o# � � �

#p#h# # #n#g# #t#r# #n#h# # #(#m# #-# #1#)#x###e#q# #\#l#(#\#o#\#a#c#(#2#,# � � �

#)#)### #+# #m#x# #-# #8# #=# #0# #(#1#)##V# #i# #g#i# # #t#r# # #n# #o# #c# #a#� � � � �

#m# #t#h# # #p#h# # #n#g# #t#r# #n#h# #(#1#)# #l# # #p#h# # #n#g# #t#r# #n#h# � � � � � � � �

#b# #c# #h#a#i# #m# #t# # #n#.##G#i# #i# #p#h# # #n#g# #t#r# #n#h# #(#1#)# � � � � � � �

#v# #i# #m# #=# #2#.##C# #u# #2#:# #(#1###)# ##V#i# #t# #c# #n#g# #t#h# #c# � � � � �

#t# #n#h# #d#i# #n# #t# #c#h# #x#u#n#g# #q#u#a#n#h# #v# # #t#h# # #t# #c#h# � � � � � �

#h# #n#h# #n# #n#.##T# #n#h# #d#i# #n# #t# #c#h# #x#u#n#g# #q#u#a#n#h# #v# # � � � � � �

#t#h# # #t# #c#h# #h# #n#h# #n# #n# #c# # #c#h#i# #u# #c#a#o# #l# # #8#c#m# � � � � � � �

#v# # #b# #n# #k# #n#h# ### #y# #l# # #6#c#m#.##I#I#.# #B# #i# #t# #p#:# � � � � � � �

#(#8###)##B# #i# #1#:# #(#1#,#5###)# #C#h#o# #h# #m# #s# # # #y###e#q# � � �

#\#l#(#\#l#(# #)#)###=###e#q# #\#l#(#\#l#(# #)#)###2#x###e#q#

#\#l#(#\#o#\#a#c#(#2#,# #)#)###.##V# # ### # #t#h# # #h# #m# #s# # #t#r# #n#.## � � � � � �

#V# #i# #g#i# # #t#r# # #n# #o# #c# #a# #x# #t#h# # #h# #m# #s# # ### #n#g# � � � � � � � � �

#b#i# #n#,# #n#g#h# #c#h# #b#i# #n#.##B# #i# #2#:# #(#1###)# #G#i# #i# #h# # � � � � � �

#B# #i# #3#:# #(#1###)# #T# #m# #h#a#i# #s# # #u# #v# # #v# #b#i# #t# � � � � �

#r# #n#g#:# #u# #+# #v# #=# #3#0# #v# # #u#.#v# #=# #2#1#6#.##B# #i# #4#:# � � �

#(#1#,#5###)# #H#a#i# ### #i# #q#u# #t# #s# #n# #m# #t# #n#g# #i# #n#h# #.# � � � � � �

#N# #u# #h# # #c# #n#g# #l# #m# #t#h# # #t#r#o#n#g# #4# #n#g# #y# #x#o#n#g# � � � � � �

#v#i# #c#.# #N# #u# #h# # #l# #m# #r#i# #n#g# #t#h# # ### #i# #I# #h#o# #n# � � � � � � � �

#t#h# #n#h# #c# #n#g# #v#i# #c# #n#h#a#n#h# #h# #n# ### #i# #I#I# #l# # #6# � � � � � �

#n#g# #y#.# #H# #i# #n# #u# #l# #m# #r#i# #n#g# #t#h# # #m# #i# ### #i# � � � � � � � �

#p#h# #i# #l# #m# #t#r#o#n#g# #b#a#o# #n#h#i# #u# #n#g# #y# ### # #x#o#n#g# � � � � �

#v#i# #c# #?##B# #i# #5#:# #(#3###)# #C#h#o# #t#a#m# #g#i# #c# #A#B#C# #c# #n# � � � �

#t# #i# #A# #c# # #c# #n#h# ### #y# #n#h# # #h# #n# #c# #n#h# #b# #n#,# #n# #i# � � � � � � � � �

#t#i# #p# ### # #n#g# #t#r# #n# #(#O#)#.# #T#i# #p# #t#u#y# #n# #t# #i# #B# � � � � � � �

#v# # #C# #c# #a# ### # #n#g# #t#r# #n# #l# #n# #l# # #t# #c# #t# #t#i#a# #A#C# � � � � � � � � �

#v# # #t#i#a# #A#B# # # #D# #v# # #E#.# #C#h# #n#g# #m#i#n#h#:##B#D###e#q# � � � �

#\#l#(#\#o#\#a#c#(#2#,# #)#)### #=# #A#D#.#C#D#;##T# # #g#i# #c# #B#C#D#E# #l# #� � �

#t# # #g#i# #c# #n# #i# #t#i# #p#.##� � � �

### #P# # #N# ### # #K#I# #M# #T#R#A# #H# #C# #K# # #I#I##M# #N#:# #T#O# #N# #-#� � � � � � � �

#L# #P#:# #9##I#.# #L# # #t#h#u#y# #t#:#� � � #2####C# #u# #1#:# #(# #1### #)#� ##

#s#i#n#h# #l# #:## #� # #l# #=# ###e#q# #\#l#(#\#r#(#,#8###e#q#

#\#l#(#\#o#\#a#c#(#2#,# #)#)###+#6###e#q# #\#l#(#\#o#\#a#c#(#2#,# #)#)###)#)###

#=# #1#0# #c#m# ## # # # # #D#i# #n# #t# #c#h# #x#u#n#g# #q#u#a#n#h# � �

#$##$## 5##&P#$#/� ��#If####a$#gd Q #####$## 5##&P#$#/� � � ��#If####gd Q #####$##$## 5#� � �

#&P#$#/��#If####a$#gd Q ######$#a$#gd6#########:~##>~##� � ��#######################

######################## r##� ��<# ##t"w(`# #############� �

### #d#####�

#######

### #e#####�

#######

### #o#####�

#######

### #######�

###

### #d#####�

###

### #e#####�

###

### #S#####�

###

####### ###########�

###

### #######�

###

###########################$## 5##&P#$#/� ��#If####gd Q # ##kd ####$##$#If##### l#� � � � �

# ##########################ࡱ##� ��<# ##X#t"w(## #� �

###########

#####d#

###

#######

###

#######

###

###############

###########

#######

###

###

#####d#####

###

#####e#####

###

#####S#####

###

###################

###

### #######�

###

##�

##8

###########

#####d#

###

#######

###

#######

###

#######

###

###

#####d#####

###

#####e#####

###

#####S#####

###

###################

###

###########

###

[ #CJ##aJ#####h#$1#5# CJ##aJ####h #c##h#$1#5# CJ##aJ####h6####h # #CJ##aJ#####h#� � � � � �

$1#CJ##aJ#####h # #CJ##aJ#####h6####h#$1#CJ##aJ#####h#$1####h#$1#6# CJ##aJ####h6� � �

####h#$1#6# CJ##aJ####h Q ####h Q #CJ##aJ#####h6####h Q #CJ##aJ#####h #c##h {W#5� � � � � � � � �

# CJ##aJ####h {W#5# CJ##aJ####h Q #5# CJ##aJ###+ ###########� � � � � � �

###########

#####d#

###

#######

###

#######

###

#######

###

###

#####d#####

###

#####e#####

###

#####S#####

###

###################

###

###########

###

###########

#####d#

###

#######

###

#######

###

###############

###########

#######

###

###

#####d#####

###

#####e#####

###

#####S#####

###

###################

###

###########

###

U#####$##$## 5##&P#$#/� ��#If####a$#gd 'K#####$##$## 5##&P#$#/� � ��#If####a$#gd a ###� �

##$##$## 5##&P#$#/� ��#If####a$#gd![ ##�

2###4### ### ### ###1############)############)############)####################� � �

#######$#a$#gd6### ##kd� �

###$##$#If##### l## ##########################ࡱ##� � ��<# ##X#t"w(## #� �

###########

### #d#�

###

#######

�

###

#######

###

########### ###�

###########

### ###�

###

j##��#h # ####h # #5# OJ##PJ##o(####h # ####h g ##h # #5# #7."##0"##H"##J"##L"##� � � � � � � � � � � �N"##R"##T"##|"## "## "## "## "##########4###6###N###P###R###T###X###Z###^###`###� � � �x###z###|###~### ### ### ### ### ### ### ### ####$###f###f###f##� � � � � � � �

f###f###f##6f##Hf##Jf##bf##df##ff##hf##lf##nf## f## f## f## f## f## f##� � � � � � ���������

��������� ײ�����������������׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶׶���������� �� �

j##p #h r ####h r ##h r #H*###h r ##h r #H*###j#####h r #U####h r ##� � � � � � � � � � � � � � �

#\#l#(#\#o#\#a#c#(#3#,# #)#)### # #0#,#2#5####I#I#.# #B# #i# #t# #p#:#� � #

#8#### #B# #i# #1#:# #(#1#,#5###)# #C#h#o# #h# #m# #s# # #y# #=# � � �

##V

###################M T S � � �� THI V O THPT PH N BANI, Ph n 1 : C c � � � � �� thi v o ban�

c b n� � �� s 1C u 1 ( 3 i m ) � � � � Cho bi u th c : � � # EMBED Equation.3

� � Cho hai # ng tr n (O1) v (O2) c b n k nh b ng R c t nhau t i A � � � � � � � � � �

v B , qua A v c t tuy n c t hai # ng tr n (O1) v (O2) th t t i E v F , � � � � � � � � � � � � �

# ng th ng EC , DF c t nhau t i P Ch ng minh r ng : BE = BF M t c t tuy n

qua A v vu ng g c v i AB c t (O1) v (O2) l n l# t t i C,D Ch ng minh t � � � � � � � � � � �

gi c BEPF , BCPD n i ti p v BP vu ng g c v i EF T nh di n t ch ph n giao nhau � � � � � � � � � � �

v ON l ph n gi c c a g c ANB Ch ng minh M n m tr n m t cung tr n c � � � � � � � � � � � � ��nh khi

M thay ��i X c � ��nh v tr c a M � � � �� kho ng c ch O1O2 l ng n nh t � � � � � �� s 4 C u� �

1 ( 3 i m ) � � Cho bi u th c : # EMBED Equation.3 ###R t g n bi u th c T nh � � � � � � �

gi tr c a # EMBED Equation.3 ### khi # EMBED Equation.3 ###C u 2 ( 2 i m ) � � � � � �

Gi i ph# ng tr nh : # EMBED Equation.3 ###C u 3 ( 2 i m ) � � � � � � Cho h m �

s : y = -# EMBED Equation.3 ###T m x bi t f(x) = - 8 ; - # EMBED Equation.3 � � �

### ; 0 ; 2 Vi t ph# ng tr nh # ng th ng i qua hai i m A v B n m tr n � � � � � � � � � � � � ��

th c ho nh � � � �� l n l# t l -2 v 1 C u 4 ( 3 i m ) � � � � � � � Cho h nh vu ng � �ABCD , tr n c nh BC l y 1 i m M # ng tr n # ng k nh AM c t # ng tr n � � � � � � � � � � � � � � �

# ng k nh BC t i N v c t c nh AD t i E Ch ng minh E, N , C th ng h ng G i

F l giao i m c a BN v DC Ch ng minh # EMBED Equation.3 ###Ch ng minh r ng� � � � � � � �

MF vu ng g c v i AC � � � �� s 5 C u 1 ( 3 i m ) � � � � Cho h ph# ng tr nh : # EMBED � � �Equation.3 ###Gi i h ph# ng tr nh khi m = 1 Gi i v bi n lu n h ph# ng tr nh� � � � � � � � � � �theo tham s m T m m � � �� x y = 2 C u 2 ( 3 i m ) Gi i h ph# ng tr nh : # � � � � � � � �EMBED Equation.3 ###Cho ph# ng tr nh b c hai : ax2 + bx + c = 0 G i hai nghi m� � � � �

c a ph# ng tr nh l x1 , x2 L p ph# ng tr nh b c hai c hai nghi m l 2x1+ 3x2� � � � � � � � � � �

v 3x1 + 2x2 C u 3 ( 2 i m ) � � � � Cho tam gi c c n ABC ( AB = AC ) n i ti p � � � �

# ng tr n t m O M l m t i m chuy n ng tr n # ng tr n T B h # ng

th ng vu ng g c v i AM c t CM D � � � � � � Ch ng minh tam gi c BMD c n C u 4 � � � �( 2 i m ) T nh : # EMBED Equation.3 ###Gi i b t ph# ng tr nh : ( x 1 ) ( 2x + � � � � � � � �

3 ) > 2x( x + 3 ) �� s 6C u 1 ( 2 i m )� � � � Gi i h ph# ng tr nh : # EMBED � � � �Equation.3 ###C u 2 ( 3 i m ) � � � Cho bi u th c : # EMBED Equation.3 ###R t � � �

g n bi u th c A Coi A l h m s c a bi n x v � � � � � � � � � �� thi h m s A C u 3 ( 2 i m )� � � � �

T m i u ki n c a tham s m � � � � � � �� hai ph# ng tr nh sau c nghi m chung � � � �

x2 + (3m + 2 )x 4 = 0 v x2 + (2m + 3 )x +2 =0 C u 4 ( 3 i m ) � � � � � Cho # ng tr n t m O v # ng th ng d c t (O) t i hai i m A,B T m t� � � � � � � � � � � � � �

i m M tr n d v hai ti p tuy n ME , MF ( E , F l ti p i m ) Ch ng minh g c

kh ng gi i ph# ng tr nh l p ph# ng tr nh b c hai m c hai nghi m l : # EMBED � � � � � � � � � � � �Equation.3 ### v # EMBED Equation.3 ### C u 3 ( 3 i m ) Cho x2 + y2 = 4 T m� � � � �

gi tr l n nh t , nh nh t c a x + y Gi i h ph# ng tr nh : # EMBED Equation.3� � � � � � � � � � �

### Gi i ph# ng tr nh : x4 10x3 2(m 11 )x2 + 2 ( 5m +6)x +2m = 0 C u 4 ( 3� � � � � � �

i m )

� � Cho tam gi c nh n ABC n i ti p # ng tr n t m O # ng ph n gi c � � � � � � � � � � � �trong c a g c A , B c t # ng tr n t m O t i D v E , g i giao i m hai # ng � � � � � � � � � � � � � �

ph n gi c l I , # ng th ng DE c t CA, CB l n l# t t i M , N Ch ng minh tam � � � � � � � � � � �

gi c AIE v tam gi c BID l tam gi c c n Ch ng minh t gi c AEMI l t gi c � � � � � � � � � � � �

n i ti p v MI // BC T gi c CMIN l h nh g ? � � � � � � � � �� s 8 C u1 ( 2 i m ) T m m � � � � � ��ph# ng tr nh ( x2 + x + m) ( x2 + mx + 1 ) = 0 c 4 nghi m ph n bi t C u 2 ( 3� � � � � � �

i m )

� � Cho h ph# ng tr nh : # EMBED Equation.3 ###Gi i h khi m = 3 T m m � � � � � � ph# ng tr nh c nghi m x > 1 , y > 0 C u 3 ( 1 i m )

d# ng tho m n x5+y5 = x3 + y3 Ch ng minh x2 + y2 # EMBED Equation.3 ### 1 + � � � �

xy C u 4 ( 3 i m ) Cho t gi c ABCD n i ti p # ng tr n (O) Ch ng minh AB.CD� � � � � � � � � � �+ BC.AD = AC.BD Cho tam gi c nh n ABC n i ti p trong # ng tr n (O) # ng k nh � � � � � � � � � �

AD # ng cao c a tam gi c k t � � � � � � ��nh A c t c nh BC t i K v c t # ng tr n (O)� � � � � � � �

t i E Ch ng minh : DE//BC Ch ng minh : AB.AC = AK.AD G i H l tr c t m c a � � � � � � � �tam gi c ABC Ch ng minh t gi c BHCD l h nh b nh h nh � � � � � � � � �� s 9 C u 1 ( 2 � �

i m )

� � Tr c c n th c m u c c bi u th c sau :� � � � � � � � # EMBED Equation.3 ###;

# EMBED Equation.3 ###; # EMBED Equation.3 ###C u 2 ( 3 i m ) � � � Choph# ng tr nh : x2 ( m+2)x + m2 1 = 0� � � � (1)G i x1, x2 l hai nghi m� � �

c a ph# ng tr nh T m m tho m n x1 x2 = 2 T m gi tr nguy n nh nh t c a m � � � � � � � � � � � � � � ph# ng tr nh c hai nghi m kh c nhau C u 3 ( 2 i m )

Equation.3 ### L p m t ph# ng tr nh b c hai c c c h s b ng s v c c c � � � � � � � � � � � � � �nghi m l x1 = # EMBED Equation.3 ###C u 4 ( 3 i m ) � � � � � Cho hai # ng tr n � � �(O1) v (O2) c t nhau t i A v B M t # ng th ng i qua A c t # ng tr n � � � � � � � � � � � � �(O1) , (O2) l n l# t t i C,D , g i I , J l trung i m c a AC v AD Ch ng minh � � � � � � � � � �

t gi c O1IJO2 l h nh thang vu ng G i M l giao di m c a CO1 v DO2 Ch ng � � � � � � � � � � �minh O1 , O2 , M , B n m tr n m t # ng tr n E l trung i m c a IJ , # ng � � � � � � � � � � � �

th ng CD quay quanh A T m t p h p i m E.X c � � � � � � � ��nh v tr c a d y CD � � � � �� d y CD �

c � �� d i l n nh t � � � �� s 10C u 1 ( 3 i m ) 1)V � � � � � �� th c a h m s : y = # � � � �EMBED Equation.3 ###2)Vi t ph# ng tr nh # ng th ng i qua i m (2; -2) v (1 ; � � � � � � � � � �-4 ) T m giao i m c a # ng th ng v a t m # c v i � � � � � � � � � � � � �� th tr n C u 2 ( 3 � � �

i m )

� � a) Gi i ph# ng tr nh : � � � # EMBED Equation.3 ###b)T nh gi tr � � �

c a bi u th c # EMBED Equation.3 ### v i # EMBED Equation.3 ###C u 3 ( 3 i m )� � � � � � �

Cho tam gi c ABC , g c B v g c C nh n C c # ng tr n # ng k nh AB , AC� � � � � � � � � � � �

c t nhau t i D M t # ng th ng qua A c t # ng tr n # ng k nh AB , AC l n � � � � � � � � � � � � � �l# t t i E v F Ch ng minh B , C , D th ng h ng Ch ng minh B, C , E , F n m � � � � � � � �

th tr n C u 2 ( 3 i m ) Gi i ph# ng tr nh :# EMBED Equation.3 ###Gi i ph# ng � � � � � � � � � �

tr nh : # EMBED Equation.3 ###C u 3 ( 3 i m ) � � � � Cho h nh b nh h nh ABCD , # ng � � � � �

ph n gi c c a g c BAD c t DC v BC theo th t t i M v N G i O l t m # ng � � � � � � � � � � � � � � �

tr n ngo i ti p tam gi c MNC� � � �