How to solve such type of question

Let T(n)= T(n-1) + 1/n. Then T(n) is

Refer this Answering questions in quiz

here how to find the base condition which is not given in the question

@pratyush63 please reply early

Yes base condition must be given. Skip this question for now.
Just watch the video i provided in the link to get an idea of how to solve these kind of problem.
Also you can watch this https://www.youtube.com/watch?v=IawM82BQ4II

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