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The number of values of r satisfying the...

The number of values of r satisfying the equation
` ""^(39)C_(3r-1) -""^(39)C_(r^2) = ""^(39)C_(r^2-1) -""^(39)C_(3r)` is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
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