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Limit as x tends to ∞: x/e^x

As you can see, as x approaches infinity, the sum becomes ∞/∞. Now we use l'Hospitals rules.

d/dx(x) = 1 (Derivative)
d/dx(e^x) = e^x (Derivative)

therefore, the sum can be written as lim x tends to ∞ 1/e^x

Now as x approaches infinity, the sum = 1/∞ = 0

Therefore, lim x tends to infinity: x/e^x = 0

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Q: What is the limit of x divided by e to the x as x approaches infinity?
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