The integral of sinx is pretty easy.If you want to calculate the area from 0 to n times pi, just check if n is odd or even. If its odd then the area is 2, if its even area is equal to zero.####[['integral of sinx', 'Mathematical_Related_Concept', 'POS'], ['area from 0 to n times pi', 'Mathematical_Related_Concept', 'NEU']]