1.

If (1+x)n=C0+C1x+C2x2+...+Cnxn,thenC20+C21+C22+.....+C2n is equal to :

Answer»

If (1+x)n=C0+C1x+C2x2+...+Cnxn,thenC20+C21+C22+.....+C2n is equal to :




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