- #1
][nstigator
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Hey guys, got a small problem and need some help Homework Statement
Show that
[tex] \arctan{\left( \frac{x}{2} \right)} = \arccos{\left(\frac{2}{\sqrt{4+x^2}}\right)} \ \mbox{for x}\epsilon\mbox{R} [/tex]
The attempt at a solution
Honestly I am pretty stumped from the very beginning...
The only thing I can currently think of to do is go...
[tex] \arctan{\frac{x}{2}} = \frac{\arcsin{\frac{x}{2}}}{\arccos{\frac{x}{2}}} [/tex]
but I am not sure if that is even correct...
Even still, if that is valid, I am still pretty unsure what I am meant to do next..
Any hints to point me in the right direction would be much appreciated
I hope I did the Latex stuff right, its my first time using it..
Show that
[tex] \arctan{\left( \frac{x}{2} \right)} = \arccos{\left(\frac{2}{\sqrt{4+x^2}}\right)} \ \mbox{for x}\epsilon\mbox{R} [/tex]
The attempt at a solution
Honestly I am pretty stumped from the very beginning...
The only thing I can currently think of to do is go...
[tex] \arctan{\frac{x}{2}} = \frac{\arcsin{\frac{x}{2}}}{\arccos{\frac{x}{2}}} [/tex]
but I am not sure if that is even correct...
Even still, if that is valid, I am still pretty unsure what I am meant to do next..
Any hints to point me in the right direction would be much appreciated
I hope I did the Latex stuff right, its my first time using it..
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