Calculate this limit ( n ــــ > + infinity ) :
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Hello, dhiab! Ratio Test: . . . . . . . . . Divide top and bottom by Then: . Since , the series diverges.
Soroban, I think you made an error in your ratio test: since , then , which prevents the cancelling you did. Dhiab, the key to this limit is Stirling's approximation: for large n. --Kevin C.
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