The value of \[\sum\limits_{r=0}^{n-1}{\frac{^{n}{{C}_{r}}}{^{n}{{C}_{r}}+{{\,}^{n}}{{C}_{r+1}}}}\] equals [MP PET 2004]

The value of \[\sum\limits_{r=0}^{n-1}{\frac{^{n}{{C}_{r}}}{^{n}{{C}_{

1.	The value of \[\sum\limits_{r=0}^{n-1}{\frac{^{n}{{C}_{r}}}{^{n}{{C}_{r}}+{{\,}^{n}}{{C}_{r+1}}}}\] equals [MP PET 2004]
A.	\[n+1\]
B.	\[\frac{n}{2}\]
C.	\[n+2\]
D.	None of these
Answer» C. \[n+2\]

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The value of \[\sum\limits_{r=0}^{n-1}{\frac{^{n}{{C}_{r}}}{^{n}{{C}_{r}}+{{\,}^{n}}{{C}_{r+1}}}}\] equals [MP PET 2004]

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