Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.


Josel777
Posts:
2
From:
PDX
Registered:
4/6/07


Need help with formula...
Posted:
Apr 6, 2007 12:21 PM


Hello,
I am trying to solve for A.
(H/cos A )= (L/cos (A+B))
I know that cos (A+B)= cos A cos B  sin A sin B
Substituting the previous into the original equation:
H(cos A cos B  sin A sin B)= L cos A
or
H(cos A cos B) H(sin A sin B)= L cos A
What can I do after this?
Any help is most appreciated.



