Chapter 4 - 12th Business Maths - Differential Equation

Exercise 4.1 https://bit.ly/2KHknRg

Exercise4.2 https://bit.ly/2MqqwTV

Exercise4.3  https://bit.ly/31TSpYj

Exercise4.4 https://bit.ly/2TLkcqQ

Exercise4.5 https://bit.ly/31S20yJ

Exercise4.6 https://bit.ly/2TMBnYY

Examples  https://bit.ly/31I5GmC