Combination Equation Condition (Jee Mains) | ExamDuo
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Combinations
Medium
Combination Equation Condition
n
−
1
C
r
=
(
k
2
−
8
)
n
C
r
+
1
if and only if :
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SELECT ONE OPTION
A
2
√
2
<
k
≤
3
B
2
√
3
<
k
≤
3
√
2
C
2
√
3
<
k
<
3
√
3
D
2
√
2
<
k
<
2
√
3
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