Vectors t= -6i - 2j, u = -4i-8j, and v= -4i + 12j are givePart A: Find the angle between vectors t and u. Show all necessary calculations. (5 points)Part B: Choose a value for c, such that c> 1. Find w = cv. Show all necessary work. (2 points)Part C: Use the dot product to determine if t and w are parallel, orthogonal, or neither. Justify your answ