题目内容
求下列式子的值:
(1)(2
)
-(-2008.11)0-(
)-
+(1.5)-2
(2)(log43+log83)(log32+log92)
(1)(2
1 |
4 |
1 |
2 |
27 |
8 |
2 |
3 |
(2)(log43+log83)(log32+log92)
(1)原式=[(
)2]
-1-[(
)-3]-
+(
)-2=
-1-(
)2+(
)2=
;
(2)原式=(
+
)(
+
)=(
+
)(1+
)=
.
3 |
2 |
1 |
2 |
2 |
3 |
2 |
3 |
3 |
2 |
3 |
2 |
2 |
3 |
2 |
3 |
1 |
2 |
(2)原式=(
lg3 |
2lg2 |
lg3 |
3lg2 |
lg2 |
lg3 |
lg2 |
2lg3 |
1 |
2 |
1 |
3 |
1 |
2 |
5 |
4 |
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