(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I don't understand why cot^(-1)(0) = pi/2 and was hoping someone could explain this to me. cot(theta)=1/tan(theta)

because tan^(-1)(0) is undefined

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Cot^(-1)(0) = pi/2, why?

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