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nCr+2. nC(r-1)+nC(r-2)=...

`nC_r+2. nC_(r-1)+nC_(r-2)=`

A

` ((50),(50))`

B

(50)^(50)

C

2^(100)

D

2^(50)

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The correct Answer is:
A
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HIMALAYA PUBLICATION-BINOMIAL THEOREM-QUESTION BANK
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