问题
解答题
化简求值: (1)
(2)
|
答案
(1)∵
+6 1 4
+0.027-3 82
×(-2 3
)-21 3
=
+4+1005 2
=
.(5分)213 2
(2)∵lg8+lg125-lg2-lg5 lg
lg0.110
=lg1000-lg10
lg10•lg0.11 2
=3-1
×(-1)1 2
=-4.(5分)
化简求值: (1)
(2)
|
(1)∵
+6 1 4
+0.027-3 82
×(-2 3
)-21 3
=
+4+1005 2
=
.(5分)213 2
(2)∵lg8+lg125-lg2-lg5 lg
lg0.110
=lg1000-lg10
lg10•lg0.11 2
=3-1
×(-1)1 2
=-4.(5分)