Question

what is the defination of derivative ??

Answer 1

Definition of 'Derivatives' Definition: A derivative is a contract between two parties which derives its value/price from an underlying asset. The most common types of derivatives are futures, options, forwards and swaps. 

Answer 2

Definition

The derivative of f (x) with respect to x is the function f'(x) and is defined as,
f'x=lim f (x+h) -f (x)/ h