phuong trinh - BPT mu + loga

ph¬ng tr×nh l«garit
A. sö dông tÝnh ®¬n ®iÖu:
B. §a vÒ cïng c¬ sè:
C. pt cã 2 c¬ sè:
D. pt cã 3 c¬ sè:
E. pt cã Èn ë c¬ sè:
F. pt cã tham sè:
G. pt cã trÞ tuyÖt ®èi:
1. §HYHN99:
255
9
3
53
log.loglog
x
=+
x
5
log
2. §HXD 88:
)X(log.XlogX 112
95
−+=
2
5
2log
3. §HQGHCM 96:
2
1
213
2

3
=+−−
+
)xx(log
x
4. §HQGHN 98:
3312723
2
2
2
2
2
log)xx(log)xx(log
+=+++++
5. §HSPHN2 98:
15515
1
255
=−−
+
)(log).(log
xx
6. §HBK2000:
3
8
2
2
4
4421 )x(logxlog)x(log
++−=++

7. HVQH 2000:
)xx(log)xx(log)xx(log)xx(log 1111
24
2
24
2
2
2
2
2
+−+++=+−+++
8. §HNN 2000:
2
4224
=+
)x(loglog)x(loglog
9. HVCTQGHCM 2001:
2
9
3
32
27
3
2
1
2
1
65 )x(log
x
log)xx(log

−+
−
=+−
10. §HNTH¦¥NG 95:
)x(loglog)x(loglog
3223
=
11. HVKT 99:
)xx(log)xx(log).xx(log 111
2
6
2
3
2
2
−−=−+−−
12. §HY 99:
2253
9535
log.logxlogxlog
=+
13. §H QGHN B-2000:
)x(logxlog 2
75
+=
14. HVNH 2001:
Xlog.Xlogxlogxlog
7272
22
+=+

15. §HSP VINH 2001:
)xx(log)xx(log).xx(log 111
2
20
2
5
2
4
−−=−+−−
16.