Question: D Question 2 1 pts Consider the three points A(1, 1, 4), B(2, -3, 1) and C(4, k, 1). If u is the vector from

D Question 2 1 pts Consider the three points A(1, 1, 4), B(2, -3, 1) and C(4, k, 1). If u is the vector from A to B and w is the vector from A to C. What is the value of k that makes a right angle between u and w? D Question 3 1 pts Consider two vectors u = (2, 3, -1) and w = (-1, 4, k). Which of the following values of k will make the angle between u and w obtuse

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