A function that is its own inverse is called a <u>involution.</u> I<u>t is not necessary the inverse of every function must be a function itself.”</u>
<u>Step-by-step explanation</u>:
Inverse is a function that reverse itself
Lets ,consider an equation used to convert temperature in degrees Fahrenheit( F), to a temperature in degrees Celsius,(C)
C=3/9(F-32)
But suppose ,we want a equation that did the reverse that means it converted a temperature in degrees Celsius to a temperature in degrees Fahrenheit. Then we inverse the function as