问题
解答题
(1)求|1+lg0.001|+
|
答案
(1)|1+lg0.001|+
+lg6-lg0.02(lg3)2-4lg3+4
=|1-3|+|lg3-2|+lg300
=2+2-lg3+lg3+2
=6
(1)a
+a-3 2 3 2
=(a
+a-1 2
)[(a1 2
+a-1 2
)2-3]1 2
=18
(1)求|1+lg0.001|+
|
(1)|1+lg0.001|+
+lg6-lg0.02(lg3)2-4lg3+4
=|1-3|+|lg3-2|+lg300
=2+2-lg3+lg3+2
=6
(1)a
+a-3 2 3 2
=(a
+a-1 2
)[(a1 2
+a-1 2
)2-3]1 2
=18