6) \( y=\operatorname{arctag} 3 / x \)
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Bonus Knowledge
Did you know that the inverse tangent function, or arctan, has been a favorite in mathematics for centuries? It’s often used in trigonometry to find angles when you know the ratio of the sides of a triangle. In the case of \( y=\operatorname{arctan}(3/x) \), you can visualize finding the angle whose tangent is \( 3/x \). It's like a treasure map guiding you to the angle treasure! When you're working with the function \( y=\operatorname{arctan}(3/x) \), keep an eye out for common mistakes. A typical pitfall is confusing arctan with tangent; they’re inverses. Remember, when you differentiate this function, you'll need to apply the chain rule. The derivative of arctan is \( \frac{1}{1+x^2} \), but since you have \( 3/x \), you’ll need to carefully consider the derivative of \( 3/x \) as well. Happy calculating!