Textbook ExpertVerified Tutor
1 Dec 2021
Given information
The given function is
Step-by-step explanation
Step 1.
We sketch the graph of in the interval in figure.
We see that the graph of is same in the interval below the - axis as the graph of in the interval above the -axis (same in magnitude)
We can estimate the value of the integral
By the difference of the sum of the areas above the $x$-axis and the sum of the areas below the axis
Or