Task 21 : WAP to find the roots of the quadratic equation with real roots using math library.
Task 22 : WAP to read weekday number and print weekday name using switch.
Task 23 : WAP to design calculator with basic operations using switch.
Task 24 : Modify the previous program to run repeatedly along with a exit condition using goto.
Task 25 : WAP to find the height of the building when the user enters the distance from the building and the angle of elevation in degrees.