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35
2000 Guts #35: Generating function
2000 Guts #35: Generating function
Source:
October 25, 2014
function
Problem Statement
If
1
+
2
x
+
3
x
2
+
.
.
.
=
9
1+2x+3x^2 +...=9
1
+
2
x
+
3
x
2
+
...
=
9
, find
x
x
x
.
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