问题
解答题
计算: (1)0.04-
(2)
|
答案
(1)0.04-
-(-0.3)0+161 2 3 4
=0.2-1-1+23=5-1+8=12 …(6分)
(2)
lg25+2log23+lg23 4 2
=
lg5+3+3 2
lg23 2
=
(lg5+lg2)+33 2
=
…(12分)9 2
计算: (1)0.04-
(2)
|
(1)0.04-
-(-0.3)0+161 2 3 4
=0.2-1-1+23=5-1+8=12 …(6分)
(2)
lg25+2log23+lg23 4 2
=
lg5+3+3 2
lg23 2
=
(lg5+lg2)+33 2
=
…(12分)9 2