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Grade:

                        

∑ r=1 n ( n-1 C r-1 )^2 = 2n-2 C n-1 Prove this. Please show how square of ( n-1 C r-1 ) equal to 2n-2 C n-1 ??

2 years ago

Answers : (2)

ROSHAN MUJEEB
askIITians Faculty
828 Points
							Dear Student
Please find attached632-34_4AD39158-BDB0-49CD-8FB5-4BAA8DB00AEA.jpeg
5 months ago
Vikas TU
12279 Points
							
632-34_4AD39158-BDB0-49CD-8FB5-4BAA8DB00AEA.jpeg
Dear student 
Please refer the clear image of this solution 
Feel free to ask querry 
We will happy to help you.
Good Luck 
Cheers 
3 months ago
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