问题 解答题
计算:
(1)(2
3
5
)0+2-2×(
1
4
)-1-100
1
2

(2)lg2+lg5+log2.56.25+lg
1
100
+ln
e
答案

(1)(2

3
5
)0+2-2×(
1
4
)-1-100
1
2
=1+
1
22
×4-
100
=2-10=-8.

(2)lg2+lg5+log2.56.25+lg

1
100
+ln
e
=lg10+
lg(2.5)2
lg2.5
+lg10-2+lne
1
2
=1+2-2+
1
2
=
3
2

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