24. A 5, B-2. The angle between A and B is 120°. Determine the unit vector in the direction of A + B %3D (A + B ) B) a. c. b. 15(4 + B) d. V 19(A+B) 25. If 5A= 15, then what is A? a. 3 с. 15 b. 45 d. 5

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