FURTHER MATHEMATICS SSS2 THIRD TERMWEEK 8INTEGRATION (INDEFINITE INTEGRAL, DEFINITE INTEGRAL AND AREA UNDER CURVEContentThe process of reversing differentiation is called Integration. If dy/dx = 3x2, then y could be x3, as the derivative of x3 is 3x2.We say that x3 is an integral of 3x2 with respect to x. The symbol for integration sign is given by ∫ . The expression to be integrated is put between the ∫ sign and dx.∫ 3x2 dx could be x3Since differentiating any constant gives zero, the following also have derivation 3x2.