Binomial TheoremMedium
Question
If (1 + x − 2x2 )6 = 1 + C1x + C2x2 + C3x3 + ....+ C12 x12, then the value of C2 + C4 + C6 + ...+ C12 is -
Options
A.30
B.32
C.31
D.None of these
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