It involve integration among specified limits, say a and b
The integral is a definite integral whether the limits of integration are as: a and b
The integrals is evaluated as given below
1. Calculate the indefinite integral ?f(x)dx. By supposing it is F(x) + c
2. Attach the limits of integration
3. Substitute b as the upper limit and then substitute a as the lower limit for x.
4. Obtain the difference and the result is the numerical value for the definite integral.
By applying these steps to the definite integral, then