问题
解答题
lg52+
|
答案
原式=2lg5+
×lg23+22×33+(22 3
+1 2
)1 4
-4×[(4 3
)-2]-7 4
-21 2
×(23)1 4
-11 4
=2（lg5+lg2）+108+2-4×
-27 4
+1 4
-13 4
=2+108+2-7-2-1
=102．
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lg52+
|
原式=2lg5+
×lg23+22×33+(22 3
+1 2
)1 4
-4×[(4 3
)-2]-7 4
-21 2
×(23)1 4
-11 4
=2（lg5+lg2）+108+2-4×
-27 4
+1 4
-13 4
=2+108+2-7-2-1
=102．