NCERT Exercise 3.6 - Motion in a Plane
Question: Given |A| = 3 and |B| = 4, state with reasons whether the following are true or false: (a) |A + B| ? 7 (b) |A + B| ? 1 (c) |A ? B| 1
Answer: (a) T, (b) T, (c) T, (d) T. Equality when **parallel** (same or opposite direction).
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