In Class 12 Chapter 8 - Application of Integrals, the key formulas include:1. Area under a curve:
$\text { Area }=\int_a^b y d x=\int_a^b f(x) d x$
2. Area between two curves:
$ \text{Area} = \int_a^b [f(x) - g(x)] ,dx, \quad \text{where } f(x) \geq g(x) \text{ in } [a, b]. $
3. For vertical strips (in terms of $y$ ):
$\text { Area }=\int_c^d[f(y)-g(y)] d y$
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile