Differentiate w.r.t. t
\frac{3t^{2}}{4}
Evaluate
\frac{t^{3}}{4}
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3\times \frac{1}{4}t^{3-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{3}{4}t^{3-1}
Multiply 3 times \frac{1}{4}.
\frac{3}{4}t^{2}
Subtract 1 from 3.
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