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(1 point) You are looking down at a map. A vector u with |u| = 1 points north and a vector v with | v| = 7 points northeast. The crossproduct u x v points: A south Bj northwest C) up Dj down Please enter the letter of the correct answer: D The magnitude |u x v| = 7 sin( 45)(1 point) Find two unit vectors orthogonal to a = (-2, -4, 1) and b = (-5, -4,4) Enter your answer so that the first non-zero coordinate of the first vector is positive. First Vector: Second Vector.(1 point) Find the distance the point (-1, -2, -1) is to the line through the two points Q(0, 0, -4 ), and R(1, 2, -1 ). 180 V 20