What is (\partial)/(\partial t)(r/t) ?

The answer to (\partial)/(\partial t)(r/t) is -r/(t^2)

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(\partial)/(\partial t)(r/t)

\frac{\partial}{\partial t} (\frac{r}{t})

- \frac{r}{t ^{2}}

Solution steps

\frac{\partial}{\partial t} (\frac{r}{t})

Treat

r

as a constant

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= r \frac{\partial}{\partial t} (\frac{1}{t})

Apply exponent rule:

\frac{1}{a} = a^{- 1}

= r \frac{\partial}{\partial t} (t^{- 1})

Apply the Power Rule:

\frac{d}{d x} (x^{a}) = a \cdot x^{a - 1}

= r (- 1 \cdot t^{- 1 - 1})

Simplify

r (- 1 \cdot t^{- 1 - 1}) : - \frac{r}{t ^{2}}

= - \frac{r}{t ^{2}}

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What is (\partial)/(\partial t)(r/t) ?
The answer to (\partial)/(\partial t)(r/t) is -r/(t^2)