I was told that assuming an inverse trigonometric function as an angle simplifies the problem. This doesn't seem to help me in this problem.
Hello,
I've seen some problems solved this way, but I just can't do them...
I'll try, but MY way, that is to say : calculations !
Here are the formula I'll use :
(formula 18 : Inverse Tangent -- from Wolfram MathWorld)
(formula 12 : Inverse Cosine -- from Wolfram MathWorld)
(formula 36 : Inverse Tangent -- from Wolfram MathWorld)
Using formula (1), we have to solve :
Using formula (2) and after some simplifications, we have to solve :
Using formula (3), we get :
Using formula (3) once again, we get :
And I must say I'm lost here...