问题
填空题
1
|
答案
1
+21 2
+31 4
+…+101 8 1 210
=1+
+2+1 2
+…+10+1 4 1 210
=(1+2++…+10)+(
+1 2
+…+1 4
)1 210
=
+(1+10)×10 2
(1-1 2
)1 210 1- 1 2
=56-
=1 210 57343 1024
故答案:57343 1024
1
|
1
+21 2
+31 4
+…+101 8 1 210
=1+
+2+1 2
+…+10+1 4 1 210
=(1+2++…+10)+(
+1 2
+…+1 4
)1 210
=
+(1+10)×10 2
(1-1 2
)1 210 1- 1 2
=56-
=1 210 57343 1024
故答案:57343 1024