Evaluate y=e^-4

$y = e^{- 4}$

Step 1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$y = \frac{1}{e^{4}}$

Step 2

The result can be shown in multiple forms.

Exact Form:

$y = \frac{1}{e^{4}}$

Decimal Form:

$y = 0.01831563 \dots$