print ("data type of the sum:"type(num_sum)outputdata type of num_intdata type of num_str before type castingdata type of num_str after type castingsum of num_int and num_str data type of the sumtype conversion is the conversion of object from one data type to another data type implicit type conversion is automatically performed by the python interpreter python avoids the loss of data in implicit type conversion explicit type conversion is also called type castingthe data types of objects are converted using predefined functions by the user in type castingloss of data may occur as we enforce the object to specific data type math functions the math module is standard module in python and is always available to use mathematical functions under this moduleyou have to import the module using import math for example square root calculation import math math sqrt( functions in python math module pi is well-known mathematical constantwhich is defined as the ratio of the circumference to the diameter of circle and its value is import math math pi another well-known mathematical constant defined in the math module is it is called euler' number and it is base of the natural logarithm its value is import math math