1.

The value of \(^{47}C_4 + \sum_{r=1}^5 52\ -\ ^rC_3\) is equal to:

A. \(^{52}C_4\)
B. \(^{51}C_4\)
C. \(^{51}C_3\)
D. None of these
Answer» B. \(^{51}C_4\)


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