Evaluate
\frac{2}{5}=0.4
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\int \frac{1}{5}\mathrm{d}x
Evaluate the indefinite integral first.
\frac{x}{5}
Find the integral of \frac{1}{5} using the table of common integrals rule \int a\mathrm{d}x=ax.
\frac{1}{5}\times 4-\frac{1}{5}\times 2
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.
\frac{2}{5}
Simplify.
Examples
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Integration
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