1. Please answer questions about the reading assignment (just answer Yes or No, no details needed):

1a. Can we use recursion to convert a binary number into a decimal number?

1b. Can we use recursion to check whether a given string is a palindrome?

1c. Can we use recursion to find the smallest element in an array?

2. Consider the following method:

public static int problem2(int a, int b){ int result; if (b == 0) {result = 0;} else {result = a + problem2(a, b - 1);} return result; }

2a. Trace the execution of the following statement:

System.out.println(problem2(4, 2));

2b. What will happen if we trace the following call:

System.out.println(problem2(4, -2));

2c. *For extra credit:* what exactly function is computed by the method problem2?