1. We can access certain elements of a vector by specifying the index of the value we want in parentheses after the vector's name. Suppose we have a vector x = [1 5 3 6 3]. We would type x(2) to get the second value in the x vector or x(4) to get the fourth value in the x vector. If we want to multiply the fifth value in the x vector by 3, we would write x(5) = x(5) * 3. Write the MATLAB code to add 1 to the third element of the x vector