(1)化簡(jiǎn):
a
1
3
(a-8b)
4b
2
3
+2a
1
3
b
1
3
+a
2
3
÷(1-
2b
1
3
a
1
3
)•a
1
3
+(π-1)0

(2)求值:(lg5)2+lg2•lg50+log2
1
25
•log3
1
8
•log5
1
9
(1)
a
1
3
(a-8b)
4b
2
3
+2a
1
3
b
1
3
+a
2
3
÷(1-
2b
1
3
a
1
3
)•a
1
3
+(π-1)0

=
a
1
3
(a
1
3
-(2b)
1
3
) (4b
2
3
+2a
1
3
b
1
3
+a
2
3
)    
4b
2
3
+2a
1
3
b
1
3
+a
2
3
÷(
a
1
3
-2b
1
3
a
1
3
)•a
1
3
+1
=a+1
(2)(lg5)2+lg2•lg50+log2
1
25
•log3
1
8
•log5
1
9

=(1-lg2)2+lg2(2-lg2)+
lg
1
25
lg2
lg
1
8
lg3
lg
1
9
lg5

=1+
2lg2-2
lg2
-3lg2
lg3
-2lg3
1-lg2

=1+(-2)×(-3)×(-2)
=-11
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中數(shù)學(xué) 來(lái)源: 題型:

(1)化簡(jiǎn):
a
1
3
(a-8b)
4b
2
3
+2a
1
3
b
1
3
+a
2
3
÷(1-
2b
1
3
a
1
3
)•a
1
3
+(π-1)0

(2)求值:(lg5)2+lg2•lg50+log2
1
25
•log3
1
8
•log5
1
9

查看答案和解析>>

科目:高中數(shù)學(xué) 來(lái)源: 題型:

化簡(jiǎn)下列各式:
(1)(0.008) -
1
3
-(-
1
7
-2+(
9
4
 
1
2
-(
2
-1
0 
(2)
(a
1
3
b-1)-
1
2
a
1
2
b
1
3
a•b3

查看答案和解析>>

同步練習(xí)冊(cè)答案