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For 2le rlen,{:((n),(r)):}+2({:(n),(r-1)...

For `2le rlen,{:((n),(r)):}+2({:(n),(r-1):})({:(n),(r-2):})=`

A

`((n+1),(r-1))`

B

`2((n+1),(r+1))`

C

`2((n+2),(r))`

D

`((n+2),(r))`

Text Solution

Verified by Experts

The correct Answer is:
D
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