science
Grade-11
Easy

Question

A.B=0, then the angle between the vectors is

  1. 45
  2. 60
  3. 30
  4. 90

hintHint:

90

The correct answer is: 90


    A.B = |A| |B| cos α
    A.B = 0
    Cos α = 0
    α = 90°

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