1.

If ¯Aand¯B are two vectors such that, ∣∣¯A+¯B∣∣=∣∣¯A−¯B∣∣, the angle between ¯Aand¯B is.

Answer»

If ¯Aand¯B are two vectors such that, ¯A+¯B=¯A¯B, the angle between ¯Aand¯B is.




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