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MATHEMATICS Convergent sequence

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Exercise 49: Calculate the limit 

Solution:
By using the logarithmic function of  ( , for a > 0, a ® 1, b > 0, J 5 § ), we can write

Since the function f(x) = log 3 (x) is a function of increasing (strictly increasing), that is  log 3 (x) <log 3 (x +1), we can write

,

Similarly, we estimate, on the other hand, since the function f (x) = log 3 (x) is increasing, we can write

.




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