What is the Formal Definition of the Definite Integral of the function #y=f(x)# over the interval #[a,b]# ?

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Answer 1 · 2014-09-08T18:48:16

#int_a^bf(x)dx=lim_{n to infty}sum_{i=1}^n f(a+iDelta x)Deltax#,
where #Delta x ={b-a}/n#