Given: a = -7,b=-519, c = < 5,-1,9 >,d= 2j - 4k, e = < 4, -6, -3> F = 6 -[312].G=124 -91 2x1 Determine the following if possible and if not possible explain why not. i. a ii. |c| iii. |F| iv. V. F-1 b/c vi. The values of x for which G-1 exists vii. viii. ix. X. xi. xii. xiii. The angle between a and b If d is orthogonal to e The scalar and vector projection of c on d dx c The area of a triangle defined by c and d 2 distinct unit vectors that are orthogonal to both c and d If the vectors {c, d, e} are coplanar.