SOLUTION: Let r in N such that 1 binom 9 r - 1 binom 10 r = 11 6 binom 11 r . Find the value of r.

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Question 1194598: Let r in N such that
1 binom 9 r - 1 binom 10 r = 11 6 binom 11 r .
Find the value of r.
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
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