A) \[{{f}_{1}}+{{f}_{2}}\]
B) \[\frac{{{f}_{1}}{{f}_{2}}}{{{f}_{1}}+{{f}_{2}}}\]
C) \[\frac{1}{2}({{f}_{1}}+{{f}_{2}})\]
D) \[\frac{{{f}_{1}}+{{f}_{2}}}{{{f}_{1}}{{f}_{2}}}\]
Correct Answer: D
Solution :
\[P=\frac{1}{F}=\frac{{{f}_{1}}+{{f}_{2}}}{{{f}_{1}}{{f}_{2}}}\]You need to login to perform this action.
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