Improper integrals are like definite integrals, only unbounded from the left and/or right. And yes, some of them have finite values. An unbounded area with a finite size? That's calculus to you!
The fundamental theorem tells us how we can evaluate definite integrals. Now let us put this to use and evaluate some!
Definite_integrals_of_piecewise_functions
Evaluate definite integrals of piecewise functions. This is where the definite integral properties come into good use.
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