Plz answer 1-4 thank you

1. Determine the Magnitude of these vectors: 3. Given: p = (5, -2,7) q = (3, 1, -4) r = (-2,5, -1) a) (6, 9, -2) b) ( 4, 1, 7 ) a Find the vector from the end of p to the end of q. b) Determine the distance between the ends of q and r. 2. Given m = ( 4, -1, 7) and n = ( 2,3, 1) Execute the following vector operations: a) 4m b n 4. Consider the Parallelogram below. A B c n- m d) m + 2n D e) Inl f) 12m + 5n| Express OA in terms of CA and CD