Answer
$$\eqalign{
& {\text{A reduction formula is a method developed to ease work load, this allow}} \cr
& {\text{equates an integral involving a power of a function with another integral }} \cr
& {\text{in which the power is reduced}}{\text{.}} \cr} $$
Work Step by Step
$$\eqalign{
& {\text{A reduction formula is a method developed to ease work load, this allow}} \cr
& {\text{equates an integral involving a power of a function with another integral }} \cr
& {\text{in which the power is reduced}}{\text{.}} \cr} $$
