Definite Integrals Let ?(x) be the primitive or anti-derivative of a function f(x) defined on [a, b] i.e., . Then the definite integral of f(x) over [a,b] is denoted by and is defined as [?(b) − ?(a)] i.e., . This is also called Newton Leibnitz formula. The numbers a and b are called the limits of integration, […]