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\int \frac{1}{4}\mathrm{d}t
Evaluate the indefinite integral first.
\frac{t}{4}
Find the integral of \frac{1}{4} using the table of common integrals rule \int a\mathrm{d}t=at.
\frac{1}{4}\times 12-\frac{1}{4}\times 0
The definite integral is the antiderivative of the expression evaluated at the upper limit of integration minus the antiderivative evaluated at the lower limit of integration.
3
Simplify.
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