10 X(-3) X(-2) XO) XL1) XL 1. Plot x1(k) and x2(k) using the (stem) function. 2. Write a program to determine: y(0)= x(k)x,(-k) , 3. Write a program to determine: y() - (), k y(1)= x2(k)x2(1 k) 1-1-6 = k=-10 10 k=-10