What is (e^{-x-y})/(e^{-y)} ?

The solution to (e^{-x-y})/(e^{-y)} is e^{-x}

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simplify (e^{-x-y})/(e^{-y)}

simplify

\frac{e ^{- x - y}}{e ^{- y}}

e^{- x}

Solution steps

\frac{e ^{- x - y}}{e ^{- y}}

Apply exponent rule:

\frac{x ^{a}}{x ^{b}} = x^{a - b}

= e^{- x - y - (- y)}

Apply rule

- (- a) = a

= e^{- x - y + y}

Add similar elements:

- y + y = 0

= e^{- x}

3 x^{2} (4 x^{2} y^{4})

4 \cdot π \cdot 1 0^{- 7} \cdot 2.8

115 \cdot 1 0^{- 6} \cdot \frac{25}{0.09}

3 x^{2} π x^{4}