 Hi and welcome to the session. I am Deepika here. Let's discuss the question. Find the principal value of cot inverse root 3. So just look at the table. The range of the principal value branch of cot inverse is open interval 0 to 5. So this is a key idea behind our question. So let's just start the solution. The 2y then the 2 cot pi by 6. According to our key idea, the range of the principal value branch answer for the above question. That is the principal value of cot inverse root 3 is pi by 6. I hope the question is clear to you and enjoy yourself.