In calculus, the sum rule in integration states that the integral of a sum of two functions is equal to the sum of their integrals. It is of particular use for the integration of sums, and is one part of the linearity of integration.
As with many properties of integrals in calculus, the sum rule applies both to definite integrals and indefinite integrals. For indefinite integrals, the sum rule states
Read more about Sum Rule In Integration: Application To Indefinite Integrals, Application To Definite Integrals, The Proof of The Rule
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