1. By using a single-dimensional array, solve the following equation: i=0nxi2 Input: Both x and n are values entered by the users. Output: Display the result of the solution. 2. Develop the main program that can read users' input of two square (nn) matrices. The user has to key in the element of those matrixes from the command prompt. Then, create a function that can perform any two square matrices multiplication and the answer will return to the main program to be displayed. Example: Let A and B be the nn square matrixes, the multiplication of A and B will result a nn square matrix, C: C=AB Input: Size of the matrix and elements of the matrix Output: Result of matrix multiplication 3. Create a function that can calculate any factorial and solve the following equation using a single main program. f(x)=k=010(1)k(2k)!x2kg(x)=k=110(1)k1(2k1)!x2k1 Input: Parameter x=0,4,2,32 Output: The results of f(x) and g(x) based on the given inputs in three (3) decimal places