



 
i John, Multiply both sides by z/y to obtain
Apply the exponential function t both sides so that the equation becomes
Now solve for a. I hope this helps, Penny John wrote back Hi penny, thanks for the answer with natural log. I am still stuck with this question as I was stuck at the same point that you left off. i.e. how to make 'a' subject of this equation? e^(xz/y) = (1+a^2)/(1a^2) Thanks in advance! John, Let me make the notation a little easier by writing k = e^{xz/y} then
Multiply each side by (1  a^{2}) and the equation becomes
Simplify, solve for a and then substitute k = e^{xz/y}. Penny  


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