问题
解答题
计算: (1)2log525+3log264-8log71 (2)1.10+
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答案
(1)2log525+3log264-8log71=2×2+3×6-8×0=22.
(2)1.10+
-0.5-2+lg25+2lg2=1+23 512
-4+2(lg5+lg2)=7.9 3
计算: (1)2log525+3log264-8log71 (2)1.10+
|
(1)2log525+3log264-8log71=2×2+3×6-8×0=22.
(2)1.10+
-0.5-2+lg25+2lg2=1+23 512
-4+2(lg5+lg2)=7.9 3