question_answer

If \[\frac{x}{y}=\frac{7}{4}\], find the value of \[\frac{{{x}^{2}}+{{y}^{2}}}{{{x}^{2}}-{{y}^{2}}}\]

A) \[\frac{49}{27}\]                       

B) \[\frac{72}{43}\]

C) \[\frac{65}{33}\]           

D) \[\frac{44}{75}\]

E) None of these