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The value of (n!)/((n-2)!) is...

The value of `(n!)/((n-2)!)` is

A

n(n-1)

B

(n-1)(n-2)

C

(n+1)(n)

D

(n-2)(n-3)

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The correct Answer is:
A
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PATHFINDER-PERMUTATION AND COMBINATIONS-QUESTION BANK
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  2. The value of (n!)/((n-2)!) is

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  3. The result of ^(n-1)Cr+^(n-1)C(r-1)=

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  4. If ^nCp= ^nCq and pneq then (n-p) is

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  5. If nCr+nC(r+1)=(n+1)Cx then x=?

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  7. If 16Cr=^16C(2r+1) then the value of r will be

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  8. If ^9P5=x^9P3 then the value of x will be

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  9. If ^nPr=^nP(r+1) and ^nCr=^nC(r-1) then the values of n,r are

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  10. The value of sum(r=1)^n (^nPr)/(r!) is

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