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Qn #1543
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If n and r are integers such that 1 ≤ r ≤ n, then the value of n
n-1
C
r-1
is
A.
n
C
r
B.
r(
n
C
r
)
C.
n(
n
C
r
)
D.
(n-1)(
n
C
r
)
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❓ Question: If n and r are integers such that 1 ≤ r ≤ n, then ... | TANCET Group Studies | Tancet Group Studies