There are many different rules for mathematics field. Among them,we express the solving problems for practical life with integration methods.There are integrals,double integrals, triple integrals,etc.Among these method,we use the double integrals method to find the volume and area of a region between two curves and between line and curves that design of engineerings. We define and evaluate double integrals over bounded regions in the plane which are more general than rectangles. These double integrals are also evaluated as iterated integrals, with the main practical problem being that of determining the limits of integration. We can find the volume and area of the various shape by using the integration methods. For example, volume of, area of the leaf and area of the cardioid shape, etc. We can compute number of people in the region bounded during the interval with integration method.
volume by double integration, area by double integration and average value of function, double integrate a polar form.
Kay Thi Win , Khin Myo Htun , Ngwe Kyar Su Khaing "Innovation For Solving The Problems In Social Life With Double Integrals" Iconic Research And Engineering Journals Volume 3 Issue 4 2019 Page 150-154
Kay Thi Win , Khin Myo Htun , Ngwe Kyar Su Khaing "Innovation For Solving The Problems In Social Life With Double Integrals" Iconic Research And Engineering Journals, 3(4)