Evaluate
\frac{5000}{\pi }\approx 1591.549430919
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\frac{1}{4000\pi \times 0.05\times 10^{-6}}
Multiply 2 and 2000 to get 4000.
\frac{1}{200\pi \times 10^{-6}}
Multiply 4000 and 0.05 to get 200.
\frac{1}{200\pi \times \frac{1}{1000000}}
Calculate 10 to the power of -6 and get \frac{1}{1000000}.
\frac{1}{\frac{1}{5000}\pi }
Multiply 200 and \frac{1}{1000000} to get \frac{1}{5000}.
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