Calculate the area under the curve y=2xsinx from 0 to 2?

Question

Please explain how to find the area under y=2xsinx from 0 to 2

Answer 1

If f is continuous and non-negative on the closed interval [a,b]

then the area of the region bounded by the graph f, the x-axis (y=0) and the vertical lines x=a and x=b is given by