If you do not understand the anti-by-product at first sight, the substitution lets you evaluate the integral with no too much trouble. (Sporting activities) To dam (a competitor or opponent) from advancing, Particularly to hinder an opponent from obtaining a rebound in basketball by positioning oneself in between the opponent https://gabletoppak.com/india-leads-in-generating-plastic-waste-with-10-2-mn-tonnes-a-year-study/