问题
解答题
计算下列各式的值: (1)(
(2)
|
答案
(1)原式=
+1-[9 4
]2=3 (
)27 8
+1-9 4
=1;9 4
(2)原式=
=lg4+lg3 1+lg
+lg0.36 3 8
=lg12 1+lg0.6+lg2
=lg12 lg10+lg0.6+lg2
=1.lg12 lg12
计算下列各式的值: (1)(
(2)
|
(1)原式=
+1-[9 4
]2=3 (
)27 8
+1-9 4
=1;9 4
(2)原式=
=lg4+lg3 1+lg
+lg0.36 3 8
=lg12 1+lg0.6+lg2
=lg12 lg10+lg0.6+lg2
=1.lg12 lg12