Question: I need someone to answer these questions ASAP please!!! . (2 points) 3. If E: (1, 1, 5) and 5: (2, 1,0). Then vector Er?

I need someone to answer these questions ASAP please!!!

I need someone to answer these questions ASAP
. (2 points) 3. If E: (1, 1, 5) and 5: (2, 1,0). Then vector Er? X his: (a) (5,10,3) (b) (-5,10,-3) (c) None of the above is true . ( 2 points) Points A, B, C, and D are given by their coordinates : A(1, 1, 2); B ( 1, 3, 0); C(1, 1, 3), and D(3, 3, 5). Then (a) The area of the triangle ABC is equal 2. (b) The points A, B, C, and D are coplanar (c) None of the above is true . (2 points) If [1' and bare unit vectors, then vector 17' = ("If l; (a) is a zerovector (b) is such a vector that ll'll ; ||b|| 2; angle between\" a and b 1s 30\". Then the area of a parallelogram formed by the vectors u a + b and v a bis equal to (a) x/3 (b) we ((2) None of the above is true

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