Vectors A→ and B→ lie in an xy plane. A→ has magnitude 7.0 and angle 111o; B→ has components Bx = -4.03 and By = -7.52. What is 4A→ × 3B→ in unit-vector notation? What is the angle between the directions of A→ and 4A→ × 3B→? What is A→+3.00k̂ in unit-vector notation and magnitude-angle notation with spherical coordinates?

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