Evaluate
\frac{1}{40000000\pi }\approx 7.957747155 \cdot 10^{-9}
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\frac{1}{200\pi \times 200000}
Multiply 2 and 100 to get 200.
\frac{1}{40000000\pi }
Multiply 200 and 200000 to get 40000000.
Examples
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