You are given two int variables j and k, an int array zipcodelist that has been declared and initialized, and an boolean variable duplicates. write some code that assigns true to duplicates if any two elements in the array have the same value, and that assigns false to duplicates otherwise. use only j, k, zipcodelist, and duplicates.

The value of sin(x) (in radians) can be approximated by the alternating infinite series create a function (prob3_2) that takes inputs of a scalar angle measure (in radians) and the number of approximation terms, n, and estimates sin(x). do not use the sin function in your solution. you may use the factorial function. though this can be done without a loop (more efficiently), your program must use (at least) one. you may find the mod() function useful in solving the problem.