Consider the vector = (2,-3,4). (a) What is the unit vector z in the same direction as ? Remaining Time: 05:41:50 FORMATTING: Your answer should be a vector in the form (a, b, c) and each entry must be exact, not a decimal approximation. In Mobius, a is written sqrt(a). (b) Give a unit vector that is orthogonal to . w= FORMATTING: You must use the notation of the scientific calculator. In particular all multiplications must be written with a *. For instance, 3/10 is written 3*sqrt(10)