What is the net area between #f(x) = sinx# and the x-axis over #x in [0, 3pi ]#? Calculus Introduction to Integration Integration: the Area Problem 1 Answer bp Jan 24, 2016 2 units Explanation: The net area from 0 to #3pi# would be equal to the area between 0 to #pi# which would be #int_0^pi sinx dx# = #-[cos x]_0^pi# = -[-1-1]=2 Answer link Related questions How do you find the area of a region using integration? How do you use integration to find area under curve? Why does integration find the area under a curve? How do I evaluate #int_0^5|x-5|dx# by interpreting it in terms of areas? How do you find the area of the parallelogram with vertices (4,5), (9, 9), (13, 10), and (18, 14)? How do you evaluate the integral of absolute value of (x - 5) from 0 to 10 by finding area? How do you find the area of the parallelogram with vertices k(1,2,3), l(1,3,6), m(3,8,6), and n(3,7,3)? How do you find the area of the parallelogram with vertices: p(0,0,0), q(-5,0,4), r(-5,1,2), s(-10,1,6)? How do you evaluate #int5# between the interval [0,4]? What is a surface integral? See all questions in Integration: the Area Problem Impact of this question 2149 views around the world You can reuse this answer Creative Commons License