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| hello, I have a problem in the calcellation of two expressions &[Wolfram Notebook][1] which are visibly equal. The numerators are exactly the same while the denominator are the same but written in a different way and mathematica is not able to... |
| Thank you for the answer. Actually I am looking for something more general because my expression contains not only "xg[x,y,z]" but also "x^2h[x,y,z]" etc and I want to set x=0 in every case but not in the functions f[x,y,z],g[x,y,z],h[x,y,z] etc. I... |