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If the magnitudes of scalar and vectors products of two vectors are 6 and 6√3 respectively, then the angle between two vectors is

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If the magnitudes of scalar and vectors products of two vectors are 6 and 6√3 respectively, then the angle between two vectors is 

  1. 15°
  2. 30°
  3. 60°
  4. 75°
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1 Answer

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Correct Answer : 3. 60°

Explanation :

Vector (A . B) = 6 and | A x B | = 6√3

AB cos θ = 6 and AB sin θ = 6√ 3

tan θ = 6 √3/ 6 = √ 3

θ = 60° 

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