[3 pts] Let x = [x1 , x2, , xN] and y = [yi, y2, , yN] be two equal length vectors. Write down the matlab statement that allows you to form the product vector z [xl'yl, x2*y2,... .. 1. pel mumeri 3. [3 pts] Write down the definition of the true relative error [6 pts] A Taylor series is used to approximate a function at x-1. The series is truncated to be a first order approximation, i.e., having an error that is of order O(h). If h is reduced to 1/3 its original value, by what factor will the truncation error associated with the approximation decrease