A) \[\frac{ab}{{{a}^{2}}-{{b}^{2}}}\]
B) \[\frac{{{a}^{2}}-{{b}^{2}}}{ab}\]
C) \[{{a}^{2}}+{{b}^{2}}\]
D) \[{{a}^{2}}-{{b}^{2}}\]
E) None of these
Correct Answer: B
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