If C0,C1,C2⋯ are combinational coefficient in the expansion of (1+x) – InterviewSolution

1.	If C0,C1,C2⋯ are combinational coefficient in the expansion of (1+x)n; n∈N and (C0+C1)⋅(C1+C2)⋅(C2+C3)⋯(C19+C20)=C0⋅C1⋅C2⋯C18⋅a20b!; (a,b∈N), then the value of (a+b) is
Answer» If $C_{0}, C_{1}, C_{2} \dots$ are combinational coefficient in the expansion of $(1 + x)^{n}; n \in N$ and $(C_{0} + C_{1}) \cdot (C_{1} + C_{2}) \cdot (C_{2} + C_{3}) \dots (C_{19} + C_{20}) = \frac{C_{0} \cdot C_{1} \cdot C_{2} \dots C_{18} \cdot a^{20}}{b!}; (a, b \in N)$ , then the value of $(a + b)$ is

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