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46
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\int 31-8\mathrm{d}x
Evaluate the indefinite integral first.
\left(31-8\right)x
Find the integral of 31-8 using the table of common integrals rule \int a\mathrm{d}x=ax.
23x
Simplify.
23\times 1-23\left(-1\right)
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.
46
Simplify.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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