v) Write a Python program to input two strings s1 and s2 of lengths x1 and x2 respectively. Compute the value of the expression x13 - x22 + x1*x2 - 5.

Q2. Write a C+ program that prompts the user to enter 3 number (x1,x2,x3) and compute and display the mean (average) and standard deviation(s) of the numbers . The relevant formulas are: • avg=(x1+x2+x3)/3 (x1-avg)²+(x2-avg)²+(x3-avg)² S = MG_O Include 2 functions in your program: 1. Function Average should compute and return the 2. Function Standard_deviation should compute and display it. avg.

4. Write a Python program to read input a string str and a character ch. Find the count of the character ch in the string str. Print the count in the output.

e) Write a Python program to find the sum of all multiples of 7 in the range [100,300] and print the sum in the output.