Questions
The product of first odd natural numbers equals
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a
2nCn nPn
b
12n 2nCn nPn
c
14n 2nCn 2nPn
d
none of these
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Correct option is B
1.3.5…(2n−1)=(2n)!2n(n!)=12n 2nCn nPnSimilar Questions
If then equal to
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