- #1
oahsen
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Homework Statement
there is a question and a solution in this page;
http://www.fen.bilkent.edu.tr/~otekman/math102/s03/m2q5.html"
Please firstly examine the question and solution. (5b)...
There it says f(x,y)=z and x=g(r,teta) and y=h(r,teta) and asks fxx.
He solves this problem by starting so;
fx=zr*rx+zteta*tetax ...
My question is that by writing fx such as above aren't you assume that r and teta are a function of x? However in the question it says x=f(r,teta); this means x is a function of r and teta then how can you write fx=zr*rx+zteta*tetax? Isn't there a contradiction or am i understanding something false?
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