问题
解答题
计算: (1)log256.25+lg0.01+ln
(2)(
|
答案
log256.25+lg0.01+ln
- 21+log23e
=log52.5-2+
- 2log261 2
=log52.5-2+
-61 2
=log52.5-15 2
(2)(
)-3+4×(1 2
)-16 49
×80.25-(-1 2
)05 8
=8+4×
×27 4
-13 4
=7+7×23 4