问题
解答题
| 计算： （1）(0.064)-
（2）log2732•log6427+log92•log4
|
答案
（1）(0.064)-
-(-1 3
)0+[(-2)3]-7 8
+16-0.75+|-0.01|4 3 1 2
=(
)1000 64
-1+(-2)-4+(24)-1 3
+0.13 4
=((
)3)10 4
-1+1 3
+1 16
+1 8 1 10
=
-1+5 2
+1 16
+1 8 1 10
=
．143 80
（2）log2732•log6427+log92•log427
=
•lg32 lg27
+lg27 lg64
•lg2 lg9 lg 27 lg4
=
+lg25 lg26
•lg2 lg32 lg3 3 2 lg22
=
+5 6 3 8
=
．29 24