4. Create a vector Using scilab: y1 = [1,2,3], y2 = [-2,1,-2]. Create a vector y3 which is the cross product between the vector y1 and y2. Show that the y3 vector is orthogonal with y1 and y2. Use the unit in the previous question. Display a message on the console that The dot product between y1 and y3 is____ and the dot product between y2 and y3 is ______.