The Recursion Formula of One Class Trinomial Expression
PU Feng-shan · Journal of Xinxiang Teachers College · 2007
Let n,r be positive number,we use recursion method to obtain the following calculation formulas of trinomial expression: ∫10(x2+2x+r)-ndx=an+bn(r-1)-1/2(arctan2(r-1)-1/2-arctan(r-1)-1/2 where an and bn are rational numbers.