1.

Let (1+x+x2)2014=a0+a1x+a2x2+a3x3+...+a4028x4028, and letA=a0−a3+a6−...+a4026,B=a1−a4+a7−...−a4027,C=a2−a5+a8−...+a4028.Then

Answer»

Let (1+x+x2)2014=a0+a1x+a2x2+a3x3+...+a4028x4028, and let

A=a0a3+a6...+a4026,B=a1a4+a7...a4027,C=a2a5+a8...+a4028.

Then




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