Math, asked by mansimarch1461, 1 year ago

C (n,r)+2c (n,r-1)+c (n,r-2)=?

Answers

Answered by KarupsK
29
In the attachment I have answered this problem.

I hope this answer help you
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Answered by Ice9
24

Answer:

Step-by-step explanation is given in my attachment.

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