What is the importance of the chapter Integrals? Why do we study Integrals? How many marks are carried by the chapter Integrals in class 12 board examinations? What are the methods of integration? How you will use integration by using trigonometric identities?
Differential Calculus is based on the concept of the derivative. The root level motivation for the derivative was the problem of defining tangent lines to the graphs of functions and calculating the slope of such lines.