问题
解答题
计算: (1)(2
(2)2log5125+3log264-8logπ1 |
答案
(1)(2
)1 4
-(-9.6)0-(31 2
)-3 8
+(1.5)-22 3
=(
)9 4
-1 -(1 2
)-27 8
+(2 3
)-23 2
=
-1-3 2
+4 9 4 9
=1 2
(2)2log5125+3log264-8logπ1
=2log553+3log226-0
=6+18-0
=24