A) \[\frac{1}{a}+\frac{1}{b}=2\]
B) \[\frac{1}{a}-\frac{1}{b}=1\]
C) \[\frac{1}{a}-\frac{1}{b}=2\]
D) \[\frac{1}{a}+\frac{1}{b}=1\]
Correct Answer: D
Solution :
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