![trigonometry - Proving that $\arctan(x)+\arctan(1/x)=\pm \pi/2$, could this line of reasoning possibly be correct? - Mathematics Stack Exchange trigonometry - Proving that $\arctan(x)+\arctan(1/x)=\pm \pi/2$, could this line of reasoning possibly be correct? - Mathematics Stack Exchange](https://i.stack.imgur.com/PoX0f.png)
trigonometry - Proving that $\arctan(x)+\arctan(1/x)=\pm \pi/2$, could this line of reasoning possibly be correct? - Mathematics Stack Exchange
![SOLVED: 4. (6pt) Find f'(x) and simplify. 1+x f(x) = arctan(1) + arccos(sin(2)) 1 b. f(c) = arctan(2x^2 + 4^2) SOLVED: 4. (6pt) Find f'(x) and simplify. 1+x f(x) = arctan(1) + arccos(sin(2)) 1 b. f(c) = arctan(2x^2 + 4^2)](https://cdn.numerade.com/ask_images/2aaf51c02aa54b93b352f8d5b4dd85c4.jpg)
SOLVED: 4. (6pt) Find f'(x) and simplify. 1+x f(x) = arctan(1) + arccos(sin(2)) 1 b. f(c) = arctan(2x^2 + 4^2)
![The function f (x) = arctan(1/x) − x/(1 + x 2 ) plotted with its real... | Download Scientific Diagram The function f (x) = arctan(1/x) − x/(1 + x 2 ) plotted with its real... | Download Scientific Diagram](https://www.researchgate.net/publication/257341129/figure/fig2/AS:670006954188813@1536753514531/The-function-f-x-arctan1-x-x-1-x-2-plotted-with-its-real-entire-majorant-and.png)