What is the d/(dt)(t/(t-2)) ?

The d/(dt)(t/(t-2)) is -2/((t-2)^2)

What is the first d/(dt)(t/(t-2)) ?

The first d/(dt)(t/(t-2)) is -2/((t-2)^2)

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\frac{d}{d t} (\frac{t}{t - 2})

- \frac{2}{( t - 2 ) ^{2}}

Solution steps

\frac{d}{d t} (\frac{t}{t - 2})

Apply the Quotient Rule:

(\frac{f}{g})^{'} = \frac{f ^{'} \cdot g - g ^{'} \cdot f}{g ^{2}}

= \frac{\frac{d t}{d t} ( t - 2 ) - \frac{d}{d t} ( t - 2 ) t}{( t - 2 ) ^{2}}

\frac{d t}{d t} = 1

\frac{d}{d t} (t - 2) = 1

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

Simplify

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

= - \frac{2}{( t - 2 ) ^{2}}

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