two seperate questions.

2. Construct a VI that calculates Z for various values of y and k using the minimur number of nodes for a given relationship: M=k[sin(2y)], and Z=4M - 4/y. . (a) What is the difference between a For-Loop and a While-Loop? (b) Show the icon for both For-Loop and While-Loop and explain all the parameters of the icons. (c) Name three of the groups of nodes associated with LabVIEW