问题 解答题
计算(1)log224+lg
1
2
+log3
27
+lg2-log23

(2)(
33
×
2
)6-(
1
9
)-
3
2
-(-8)0
答案

(1)log224+lg

1
2
-log3
27
+lg2-log23

=(log224-log23)+(lg

1
2
+lg2)-log33
3
2

=log28+lg1-

3
2
=
3
2

(2)(

33
×
2
)6-(
1
9
)-
3
2
-(-8)0

=(3

1
3
×2
1
2
)6-(3-2)-
3
2
-1

=9×8-27-1

=44.

填空题
单项选择题