1.

\( \left(a \atop b\right)\) is expanded as __________a) \(\frac{a!}{b!}\) b) \(\frac{a!}{b!(a-b)!}\) c) \(\frac{a!}{b!(b-

A. \(\frac{a!}{b!}\) b) \(\frac{a!}{b!(a-
B. \(\frac{a!}{b!(a-b)!}\)
C. \(\frac{a!}{b!(b-a)!}\)
D. \(\frac{b!}{a!}\)
Answer» C. \(\frac{a!}{b!(b-a)!}\)


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