问题
解答题
计算1993
|
答案
1993
-19921 2
+19911 3
-19901 2
+…+11 3
-1 2 1 3
=(1993
-19921 2
)+(19911 3
-19901 2
)+…+(11 3
-1 2
)1 3
=1
×9971 6
=1163
.1 6
计算1993
|
1993
-19921 2
+19911 3
-19901 2
+…+11 3
-1 2 1 3
=(1993
-19921 2
)+(19911 3
-19901 2
)+…+(11 3
-1 2
)1 3
=1
×9971 6
=1163
.1 6