chapter - 7- applications of differential calculus chapter - 7 - applications of differential calculus - Ex 7.1 chapter - 7 - applications of differential calculus - Ex 7.2 chapter - 7 - applications of differential calculus - Ex 7.3 chapter - 7 - applications of differential calculus - Ex 7.4 chapter - 7 - applications of differential calculus - Ex 7.5 chapter - 7 - applications of differential calculus - Ex 7.6 chapter - 7 - applications of differential calculus - Ex 7.7 chapter - 7 - applications of differential calculus - Ex 7.8 chapter - 7 - applications of differential calculus - Ex 7.9