Part C: Linearity
A linear system is as follows:
When two separate signals x(t) and y (t) enter two systems individually and their outputs are separately multiplied by constants a and b and the added .The resulting signal after addition can be called z(t).
Now if we multiply x(t) and y(t) by a and b respectively and then add them and let them enter the system.Let us call the resulting output w(t).
If w(t) and z(t) are same then the system is called a Linear system
If w(t) and z(t) are different ,then the system is called a Non Linear system.
Example of a Linear system:
x1 (t) --->SYSTEM----> X a ---
