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The beta and gamma functions, also called Euler's Integrals, are the improper integrals, which are extremely useful in the evaluation of integrals.
The integral (1–x) n–1 dx, which converges for m > 0 and n > 0 is called the beta function and is denoted by β (m, n). Thus,
Beta function is also known as Eulerian Integral of First Kind.
As an illustration, consider the integral We can write this integral .
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