Bai tap PTBPT mu va logarit - 12 co ban

BÀI TẬP PT, BPT MŨ VÀ PT, BPT LÔGARIT
1.
042.24
1
=+−
+xX
2.
9
1
3
14
2
=
+− xx
3.
12
65
2
=
+−
xx
4.
8
1
2
152
2
=
−−
xx
5.

1522
22
=−
−+
xx
6.
2
2
1
13
2
=






+− xx
7.
9
2
)2(log
=
−
x
x
x
8.
2162

2
5
6
2
=
−−
xx
9.
4
73
2
1
2
1
2
2.25.016
−
+
+
−
−
=
x
x
xx
10.
6255
2
=
x

11.
)1(2
816
xx
−−
=
12.
1log2)96(log
32
2
8
−+−
=
xxx
x
13.
991010
22
11
=−
−+ xx
14.
4
10
lg
1
x
x
x
=

15.
32
4log
2
=
+
x
x
16.
9
2
)2(log
=
−x
x
x
17.
xxx 4log2log.log
222
=
18.
4lglg3lg
22
−=− xxx
19.
3
log1
6
log
2

22
=
+
+
xx
1.
1255
1
2
≤
+−XX
2.
17
63
>
+
x
3.
3
1
27 ≤
x
4.
4
2
1
45
2
>







+− xx
5.
2
2
9)3(
−
>
x
x
6.
3773
3
7
7
3
−−






≥







xx
7.
222
7
8
2
3
−−






≤






xx
8.
055.425 <−−
x
x

9.
3
3
1
.29
2
2
2
2
≤






−
−
−
xx
xx
10.
0224
<−−
xx
11.
xxx
96.24.3
≤−
12.

21432
55222
+++++
−>−−
xxxxx
13.
13732
3.26
−++
<
xxx
14.
0103.93
<−+
−
xx
15.
2
6
39
+
<
x
x
16.
5log
2
<
x
20. x.lg2 + lg(1+2

x
) = lg6
21.
1)1(loglog
22
=−+
xx
22.
6
33
logloglog
842
=++
xxx
23.
13log2)12(log
123
+=+
+x
x
24.
1)13(log
2
1
=+−
+
xx
x
25.
x

x
−=− 3)29(log
2
26.
2log
32
=
−
x
x
27.
5loglog3
93
=− xx
28.
3
5
log3loglog
2793
=++
xxx
29.
3logloglog
2
142
=+ xx
30.
0
6
7

log2log
4
=+− x
x
17.
)2(log)1(log
2
2
1
xx
−≤+
18.






+
>−
1
2
log)2(log
25.025.0
x
x
19.
6logloglog
3
1

3
3
<++
xxx
20.
02loglog
2
1
2
2
1
≤−+ xx
21.
)86ln()105ln(
2
++>+
xxx
22.
4)82(log
2
2
1
−≥−+
xx
23.
3)1(log
2
2
≥−
x

24.
1)5(log)3(log
33
<−+−
xx
25.
055.265
12
>+−
+
xx
26.
2)326(log
5
>−
x
27.
2)413(log
3
>−
x
28.
1)1(log)
2
1
(log
2
1
2
1

≤−+− xx
29.
1log)
2
1
(log
2
1
2
1
≥++ xx
30.
)4(log)8(log
2
1
5
1
5
1
−≥+ xx