Evaluate
\frac{243}{4480e^{3}}\approx 0.002700504
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\frac{e^{-3}\times 19683}{9!}
Calculate 3 to the power of 9 and get 19683.
\frac{e^{-3}\times 19683}{362880}
The factorial of 9 is 362880.
e^{-3}\times \frac{243}{4480}
Divide e^{-3}\times 19683 by 362880 to get e^{-3}\times \frac{243}{4480}.
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