Math formula that is used in the study include a formula to get the associated quadratic variance formula. And the formula to find the area of trapezoid, which is the mathematical content of the secondary class.
Mathematical formulas used in this study are formulated to pull together. Difference between two formulas and formulas for a trapezoid area, a mathematical formula that is the content of high school.
Mathematical formulas used in this study include formula to pull together the difference quadratic formula recipe and finding the area which are trapezoidal mathematical formula is the content of the secondary level