If C0, C1, C2, _ _ _ _ _, Cn are the coefficients in the expansion of – McqOptions

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1.	If C0, C1, C2, _ _ _ _ _, Cn are the coefficients in the expansion of (1 + x)n, then what is the value of C1 + C2 + C3 + _ _ _ _ _ + Cn?
A.	2n
B.	2n - 1
C.	2n - 1
D.	2n - 2
Answer» C. 2n - 1

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